21350188

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{1229}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 38641680

約数和(自身を除く): 17291492

約数列:

[1, 2, 4, 43, 86, 101, 172, 202, 404, 1229, 2458, 4343, 4916, 8686, 17372, 52847, 105694, 124129, 211388, 248258, 496516, 5337547, 10675094, 21350188]

約数ペア:

[(1, 21350188), (2, 10675094), (4, 5337547), (43, 496516), (86, 248258), (101, 211388), (172, 124129), (202, 105694), (404, 52847), (1229, 17372), (2458, 8686), (4343, 4916)]