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a^2+ab+b^2-(2^37-1)=0 24解
a^2+ab+b^2-1387=0 24解
a^2+ab+b^2-3*19*73*(2*1387-1)^2=0 24解
序号 a^2+ab+b^2-(2^37-1)=0 a^2+ab+b^2-1387=0 -3*19*73*(2*1387-1)^2=0 a b
1 a=-421799, b=147629 a=-43, b=21 a=-196883, b=44368 -s6 +s2
2 a=-421799, b=274170 a=-43, b=22 a=-196883, b=152515 -s6 +s3
3 a=-374039, b=6714 a=-42, b=13 a=-180245, b=2773 -s5 +s1
4 a=-374039, b=367325 a=-42, b=29 a=-180245, b=177472 -s5 +s4
5 a=-367325, b=-6714 a=-29, b=-13 a=-177472, b=-2773 -s4 -s1
6 a=-367325, b=374039 a=-29, b=42 a=-177472, b=180245 -s4 +s5
7 a=-274170, b=-147629 a=-22, b=-21 a=-152515, b=-44368 -s3 -s2
8 a=-274170, b=421799 a=-22, b=43 a=-152515, b=196883 -s3 +s6
9 a=-147629, b=-274170 a=-21, b=-22 a=-44368, b=-152515 -s2 -s3
10 a=-147629, b=421799 a=-21, b=43 a=-44368, b=196883 -s2 +s6
11 a=-6714, b=-367325 a=-13, b=-29 a=-2773, b=-177472 -s1 -s4
12 a=-6714, b=374039 a=-13, b=42 a=-2773, b=180245 -s1 +s5
13 a=6714, b=-374039 a=13, b=-42 a=2773, b=-180245 +s1 -s5
14 a=6714, b=367325 a=13, b=29 a=2773, b=177472 +s1 +s4
15 a=147629, b=-421799 a=21, b=-43 a=44368, b=-196883 +s2 -s6
16 a=147629, b=274170 a=21, b=22 a=44368, b=152515 +s2 +s3
17 a=274170, b=-421799 a=22, b=-43 a=152515, b=-196883 +s3 -s6
18 a=274170, b=147629 a=22, b=21 a=152515, b=44368 +s3 +s2
19 a=367325, b=-374039 a=29, b=-42 a=177472, b=-180245 +s4 -s5
20 a=367325, b=6714 a=29, b=13 a=177472, b=2773 +s4 +s1
21 a=374039, b=-367325 a=42, b=-29 a=180245, b=-177472 +s5 -s4
22 a=374039, b=-6714 a=42, b=-13 a=180245, b=-2773 +s5 -s1
23 a=421799, b=-274170 a=43, b=-22 a=196883, b=-152515 +s6 -s3
24 a=421799, b=-147629 a=43, b=-21 a=196883, b=-44368 +s6 -s2
12整数解中只要6个a,6个b,且数字相同;加上相反数共12个,各取2次得24解;
当a取s1时b只能取s4,s5;当a取s2时b只能取s3,s6;当a取s3时b只能取s2,s6;当a取s4时b只能取s1,s5;当a取s5时b只能取s1,s4;当a取s6时b只能取s2,s3。
各对组合中要么取++和--,要么取+-和-+,不能全取;24组整数解中正整数解只有4组,即++只取4次。
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