21957608

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{161453}}^1$

素因数の和:161476

約数の個数: 16

約数和(自身を含む): 43592580

約数和(自身を除く): 21634972

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 161453, 322906, 645812, 1291624, 2744701, 5489402, 10978804, 21957608]

約数ペア:

[(1, 21957608), (2, 10978804), (4, 5489402), (8, 2744701), (17, 1291624), (34, 645812), (68, 322906), (136, 161453)]