21498321

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{42403}}^1$

素因数の和:42432

約数の個数: 12

約数和(自身を含む): 31039728

約数和(自身を除く): 9541407

約数列:

[1, 3, 13, 39, 169, 507, 42403, 127209, 551239, 1653717, 7166107, 21498321]

約数ペア:

[(1, 21498321), (3, 7166107), (13, 1653717), (39, 551239), (169, 127209), (507, 42403)]