21490311

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{2083}}^1$

素因数の和:2286

約数の個数: 16

約数和(自身を含む): 30343040

約数和(自身を除く): 8852729

約数列:

[1, 3, 19, 57, 181, 543, 2083, 3439, 6249, 10317, 39577, 118731, 377023, 1131069, 7163437, 21490311]

約数ペア:

[(1, 21490311), (3, 7163437), (19, 1131069), (57, 377023), (181, 118731), (543, 39577), (2083, 10317), (3439, 6249)]