21290704

素因数分解:

$2^4\times {\mathrm{379}}^1\times {\mathrm{3511}}^1$

素因数の和:3898

約数の個数: 20

約数和(自身を含む): 41371360

約数和(自身を除く): 20080656

約数列:

[1, 2, 4, 8, 16, 379, 758, 1516, 3032, 3511, 6064, 7022, 14044, 28088, 56176, 1330669, 2661338, 5322676, 10645352, 21290704]

約数ペア:

[(1, 21290704), (2, 10645352), (4, 5322676), (8, 2661338), (16, 1330669), (379, 56176), (758, 28088), (1516, 14044), (3032, 7022), (3511, 6064)]