20787003671

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{240043}}^1$

素因数の和:240278

約数の個数: 16

約数和(自身を含む): 24196435200

約数和(自身を除く): 3409431529

約数列:

[1, 7, 89, 139, 623, 973, 12371, 86597, 240043, 1680301, 21363827, 33365977, 149546789, 233561839, 2969571953, 20787003671]

約数ペア:

[(1, 20787003671), (7, 2969571953), (89, 233561839), (139, 149546789), (623, 33365977), (973, 21363827), (12371, 1680301), (86597, 240043)]