18793521

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{56437}}^1$

素因数の和:56480

約数の個数: 12

約数和(自身を含む): 27880372

約数和(自身を除く): 9086851

約数列:

[1, 3, 9, 37, 111, 333, 56437, 169311, 507933, 2088169, 6264507, 18793521]

約数ペア:

[(1, 18793521), (3, 6264507), (9, 2088169), (37, 507933), (111, 169311), (333, 56437)]