21350576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102647}}^1$

素因数の和:102668

約数の個数: 20

約数和(自身を含む): 44549232

約数和(自身を除く): 23198656

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102647, 205294, 410588, 821176, 1334411, 1642352, 2668822, 5337644, 10675288, 21350576]

約数ペア:

[(1, 21350576), (2, 10675288), (4, 5337644), (8, 2668822), (13, 1642352), (16, 1334411), (26, 821176), (52, 410588), (104, 205294), (208, 102647)]