20168407987

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{56843}}^1$

素因数の和:57427

約数の個数: 24

約数和(自身を含む): 25311723696

約数和(自身を除く): 5143315709

約数列:

[1, 7, 13, 49, 91, 557, 637, 3899, 7241, 27293, 50687, 56843, 354809, 397901, 738959, 2785307, 5172713, 31661551, 36208991, 221630857, 411600163, 1551415999, 2881201141, 20168407987]

約数ペア:

[(1, 20168407987), (7, 2881201141), (13, 1551415999), (49, 411600163), (91, 221630857), (557, 36208991), (637, 31661551), (3899, 5172713), (7241, 2785307), (27293, 738959), (50687, 397901), (56843, 354809)]