21291328

素因数分解:

$2^6\times {\mathrm{277}}^1\times {\mathrm{1201}}^1$

素因数の和:1490

約数の個数: 28

約数和(自身を含む): 42437812

約数和(自身を除く): 21146484

約数列:

[1, 2, 4, 8, 16, 32, 64, 277, 554, 1108, 1201, 2216, 2402, 4432, 4804, 8864, 9608, 17728, 19216, 38432, 76864, 332677, 665354, 1330708, 2661416, 5322832, 10645664, 21291328]

約数ペア:

[(1, 21291328), (2, 10645664), (4, 5322832), (8, 2661416), (16, 1330708), (32, 665354), (64, 332677), (277, 76864), (554, 38432), (1108, 19216), (1201, 17728), (2216, 9608), (2402, 8864), (4432, 4804)]