20446713

素因数分解:

$3^2\times 7^1\times {\mathrm{491}}^1\times {\mathrm{661}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 33873216

約数和(自身を除く): 13426503

約数列:

[1, 3, 7, 9, 21, 63, 491, 661, 1473, 1983, 3437, 4419, 4627, 5949, 10311, 13881, 30933, 41643, 324551, 973653, 2271857, 2920959, 6815571, 20446713]

約数ペア:

[(1, 20446713), (3, 6815571), (7, 2920959), (9, 2271857), (21, 973653), (63, 324551), (491, 41643), (661, 30933), (1473, 13881), (1983, 10311), (3437, 5949), (4419, 4627)]