21231260

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2957}}^1$

素因数の和:3325

約数の個数: 24

約数和(自身を含む): 44724960

約数和(自身を除く): 23493700

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2957, 3590, 5914, 7180, 11828, 14785, 29570, 59140, 1061563, 2123126, 4246252, 5307815, 10615630, 21231260]

約数ペア:

[(1, 21231260), (2, 10615630), (4, 5307815), (5, 4246252), (10, 2123126), (20, 1061563), (359, 59140), (718, 29570), (1436, 14785), (1795, 11828), (2957, 7180), (3590, 5914)]