21547521

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{227}}^1$

素因数の和:485

約数の個数: 24

約数和(自身を含む): 32011200

約数和(自身を除く): 10463679

約数列:

[1, 3, 9, 53, 159, 199, 227, 477, 597, 681, 1791, 2043, 10547, 12031, 31641, 36093, 45173, 94923, 108279, 135519, 406557, 2394169, 7182507, 21547521]

約数ペア:

[(1, 21547521), (3, 7182507), (9, 2394169), (53, 406557), (159, 135519), (199, 108279), (227, 94923), (477, 45173), (597, 36093), (681, 31641), (1791, 12031), (2043, 10547)]