18987404

素因数分解:

$2^2\times {\mathrm{419}}^1\times {\mathrm{11329}}^1$

素因数の和:11752

約数の個数: 12

約数和(自身を含む): 33310200

約数和(自身を除く): 14322796

約数列:

[1, 2, 4, 419, 838, 1676, 11329, 22658, 45316, 4746851, 9493702, 18987404]

約数ペア:

[(1, 18987404), (2, 9493702), (4, 4746851), (419, 45316), (838, 22658), (1676, 11329)]