21815312

素因数分解:

$2^4\times {\mathrm{521}}^1\times {\mathrm{2617}}^1$

素因数の和:3146

約数の個数: 20

約数和(自身を含む): 42364476

約数和(自身を除く): 20549164

約数列:

[1, 2, 4, 8, 16, 521, 1042, 2084, 2617, 4168, 5234, 8336, 10468, 20936, 41872, 1363457, 2726914, 5453828, 10907656, 21815312]

約数ペア:

[(1, 21815312), (2, 10907656), (4, 5453828), (8, 2726914), (16, 1363457), (521, 41872), (1042, 20936), (2084, 10468), (2617, 8336), (4168, 5234)]