20809389

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{2017}}^1$

素因数の和:2220

約数の個数: 16

約数和(自身を含む): 29382080

約数和(自身を除く): 8572691

約数列:

[1, 3, 19, 57, 181, 543, 2017, 3439, 6051, 10317, 38323, 114969, 365077, 1095231, 6936463, 20809389]

約数ペア:

[(1, 20809389), (3, 6936463), (19, 1095231), (57, 365077), (181, 114969), (543, 38323), (2017, 10317), (3439, 6051)]