20551783

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{709}}^1$

素因数の和:858

約数の個数: 16

約数和(自身を含む): 24333120

約数和(自身を除く): 3781337

約数列:

[1, 7, 41, 101, 287, 707, 709, 4141, 4963, 28987, 29069, 71609, 203483, 501263, 2935969, 20551783]

約数ペア:

[(1, 20551783), (7, 2935969), (41, 501263), (101, 203483), (287, 71609), (707, 29069), (709, 28987), (4141, 4963)]