18690885

素因数分解:

$3^3\times 5^1\times {\mathrm{138451}}^1$

素因数の和:138465

約数の個数: 16

約数和(自身を含む): 33228480

約数和(自身を除く): 14537595

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 138451, 415353, 692255, 1246059, 2076765, 3738177, 6230295, 18690885]

約数ペア:

[(1, 18690885), (3, 6230295), (5, 3738177), (9, 2076765), (15, 1246059), (27, 692255), (45, 415353), (135, 138451)]