18900357

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{12329}}^1$

素因数の和:12412

約数の個数: 16

約数和(自身を含む): 29197440

約数和(自身を除く): 10297083

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 12329, 36987, 86303, 258909, 900017, 2700051, 6300119, 18900357]

約数ペア:

[(1, 18900357), (3, 6300119), (7, 2700051), (21, 900017), (73, 258909), (219, 86303), (511, 36987), (1533, 12329)]