20518459

素因数分解:

${\mathrm{13}}^2\times {\mathrm{317}}^1\times {\mathrm{383}}^1$

素因数の和:726

約数の個数: 12

約数和(自身を含む): 22346496

約数和(自身を除く): 1828037

約数列:

[1, 13, 169, 317, 383, 4121, 4979, 53573, 64727, 121411, 1578343, 20518459]

約数ペア:

[(1, 20518459), (13, 1578343), (169, 121411), (317, 64727), (383, 53573), (4121, 4979)]