20656359

素因数分解:

$3^2\times {\mathrm{47}}^2\times {\mathrm{1039}}^1$

素因数の和:1139

約数の個数: 18

約数和(自身を含む): 30514640

約数和(自身を除く): 9858281

約数列:

[1, 3, 9, 47, 141, 423, 1039, 2209, 3117, 6627, 9351, 19881, 48833, 146499, 439497, 2295151, 6885453, 20656359]

約数ペア:

[(1, 20656359), (3, 6885453), (9, 2295151), (47, 439497), (141, 146499), (423, 48833), (1039, 19881), (2209, 9351), (3117, 6627)]