21258544

素因数分解:

$2^4\times {\mathrm{359}}^1\times {\mathrm{3701}}^1$

素因数の和:4068

約数の個数: 20

約数和(自身を含む): 41314320

約数和(自身を除く): 20055776

約数列:

[1, 2, 4, 8, 16, 359, 718, 1436, 2872, 3701, 5744, 7402, 14804, 29608, 59216, 1328659, 2657318, 5314636, 10629272, 21258544]

約数ペア:

[(1, 21258544), (2, 10629272), (4, 5314636), (8, 2657318), (16, 1328659), (359, 59216), (718, 29608), (1436, 14804), (2872, 7402), (3701, 5744)]