520872009

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{48539}}^1$

素因数の和:48629

約数の個数: 24

約数和(自身を含む): 818966880

約数和(自身を除く): 298094871

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 3577, 10731, 48539, 145617, 339773, 1019319, 2378411, 3543347, 7135233, 10630041, 24803429, 74410287, 173624003, 520872009]

約数ペア:

[(1, 520872009), (3, 173624003), (7, 74410287), (21, 24803429), (49, 10630041), (73, 7135233), (147, 3543347), (219, 2378411), (511, 1019319), (1533, 339773), (3577, 145617), (10731, 48539)]