18916381

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3121}}^1$

素因数の和:3180

約数の個数: 16

約数和(自身を含む): 22478400

約数和(自身を除く): 3562019

約数列:

[1, 11, 19, 29, 209, 319, 551, 3121, 6061, 34331, 59299, 90509, 652289, 995599, 1719671, 18916381]

約数ペア:

[(1, 18916381), (11, 1719671), (19, 995599), (29, 652289), (209, 90509), (319, 59299), (551, 34331), (3121, 6061)]