81538691

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{313}}^1\times {\mathrm{691}}^1$

素因数の和:1046

約数の個数: 16

約数和(自身を含む): 91260960

約数和(自身を除く): 9722269

約数列:

[1, 13, 29, 313, 377, 691, 4069, 8983, 9077, 20039, 118001, 216283, 260507, 2811679, 6272207, 81538691]

約数ペア:

[(1, 81538691), (13, 6272207), (29, 2811679), (313, 260507), (377, 216283), (691, 118001), (4069, 20039), (8983, 9077)]