21306788

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{137}}^1\times {\mathrm{659}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 38253600

約数和(自身を除く): 16946812

約数列:

[1, 2, 4, 59, 118, 137, 236, 274, 548, 659, 1318, 2636, 8083, 16166, 32332, 38881, 77762, 90283, 155524, 180566, 361132, 5326697, 10653394, 21306788]

約数ペア:

[(1, 21306788), (2, 10653394), (4, 5326697), (59, 361132), (118, 180566), (137, 155524), (236, 90283), (274, 77762), (548, 38881), (659, 32332), (1318, 16166), (2636, 8083)]