18540821

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{3539}}^1$

素因数の和:3596

約数の個数: 12

約数和(自身を含む): 20730240

約数和(自身を除く): 2189419

約数列:

[1, 13, 31, 169, 403, 3539, 5239, 46007, 109709, 598091, 1426217, 18540821]

約数ペア:

[(1, 18540821), (13, 1426217), (31, 598091), (169, 109709), (403, 46007), (3539, 5239)]