19806813

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4129}}^1$

素因数の和:4189

約数の個数: 24

約数和(自身を含む): 31569720

約数和(自身を除く): 11762907

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4129, 4797, 12387, 37161, 53677, 161031, 169289, 483093, 507867, 1523601, 2200757, 6602271, 19806813]

約数ペア:

[(1, 19806813), (3, 6602271), (9, 2200757), (13, 1523601), (39, 507867), (41, 483093), (117, 169289), (123, 161031), (369, 53677), (533, 37161), (1599, 12387), (4129, 4797)]