21553860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{359231}}^1$

素因数の和:359243

約数の個数: 24

約数和(自身を含む): 60350976

約数和(自身を除く): 38797116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 359231, 718462, 1077693, 1436924, 1796155, 2155386, 3592310, 4310772, 5388465, 7184620, 10776930, 21553860]

約数ペア:

[(1, 21553860), (2, 10776930), (3, 7184620), (4, 5388465), (5, 4310772), (6, 3592310), (10, 2155386), (12, 1796155), (15, 1436924), (20, 1077693), (30, 718462), (60, 359231)]