18965121

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1193}}^1$

素因数の和:1960

約数の個数: 16

約数和(自身を含む): 28961664

約数和(自身を除く): 9996543

約数列:

[1, 3, 7, 21, 757, 1193, 2271, 3579, 5299, 8351, 15897, 25053, 903101, 2709303, 6321707, 18965121]

約数ペア:

[(1, 18965121), (3, 6321707), (7, 2709303), (21, 903101), (757, 25053), (1193, 15897), (2271, 8351), (3579, 5299)]