21509061

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{10141}}^1$

素因数の和:10252

約数の個数: 16

約数和(自身を含む): 33103488

約数和(自身を除く): 11594427

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 10141, 30423, 70987, 212961, 1024241, 3072723, 7169687, 21509061]

約数ペア:

[(1, 21509061), (3, 7169687), (7, 3072723), (21, 1024241), (101, 212961), (303, 70987), (707, 30423), (2121, 10141)]