20123687943

素因数分解:

$3^2\times {\mathrm{1237}}^1\times {\mathrm{1807571}}^1$

素因数の和:1808814

約数の個数: 12

約数和(自身を含む): 29091063768

約数和(自身を除く): 8967375825

約数列:

[1, 3, 9, 1237, 3711, 11133, 1807571, 5422713, 16268139, 2235965327, 6707895981, 20123687943]

約数ペア:

[(1, 20123687943), (3, 6707895981), (9, 2235965327), (1237, 16268139), (3711, 5422713), (11133, 1807571)]