19780389

素因数分解:

$3^3\times {\mathrm{379}}^1\times {\mathrm{1933}}^1$

素因数の和:2321

約数の個数: 16

約数和(自身を含む): 29396800

約数和(自身を除く): 9616411

約数列:

[1, 3, 9, 27, 379, 1137, 1933, 3411, 5799, 10233, 17397, 52191, 732607, 2197821, 6593463, 19780389]

約数ペア:

[(1, 19780389), (3, 6593463), (9, 2197821), (27, 732607), (379, 52191), (1137, 17397), (1933, 10233), (3411, 5799)]