20957545

素因数分解:

$5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{757}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 29552904

約数和(自身を除く): 8595359

約数列:

[1, 5, 7, 35, 49, 113, 245, 565, 757, 791, 3785, 3955, 5299, 5537, 26495, 27685, 37093, 85541, 185465, 427705, 598787, 2993935, 4191509, 20957545]

約数ペア:

[(1, 20957545), (5, 4191509), (7, 2993935), (35, 598787), (49, 427705), (113, 185465), (245, 85541), (565, 37093), (757, 27685), (791, 26495), (3785, 5537), (3955, 5299)]