20698468

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7177}}^1$

素因数の和:7291

約数の個数: 24

約数和(自身を含む): 41804672

約数和(自身を除く): 21106204

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7177, 14354, 28708, 50239, 100478, 200956, 739231, 1478462, 2956924, 5174617, 10349234, 20698468]

約数ペア:

[(1, 20698468), (2, 10349234), (4, 5174617), (7, 2956924), (14, 1478462), (28, 739231), (103, 200956), (206, 100478), (412, 50239), (721, 28708), (1442, 14354), (2884, 7177)]