13978521

素因数分解:

$3^3\times {\mathrm{137}}^1\times {\mathrm{3779}}^1$

素因数の和:3925

約数の個数: 16

約数和(自身を含む): 20865600

約数和(自身を除く): 6887079

約数列:

[1, 3, 9, 27, 137, 411, 1233, 3699, 3779, 11337, 34011, 102033, 517723, 1553169, 4659507, 13978521]

約数ペア:

[(1, 13978521), (3, 4659507), (9, 1553169), (27, 517723), (137, 102033), (411, 34011), (1233, 11337), (3699, 3779)]