21000331781

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{124771}}^1$

素因数の和:124913

約数の個数: 24

約数和(自身を含む): 25091150112

約数和(自身を除く): 4090818331

約数列:

[1, 11, 13, 107, 121, 143, 1177, 1391, 1573, 12947, 15301, 124771, 168311, 1372481, 1622023, 13350497, 15097291, 17842253, 146855467, 173556461, 196264783, 1615410137, 1909121071, 21000331781]

約数ペア:

[(1, 21000331781), (11, 1909121071), (13, 1615410137), (107, 196264783), (121, 173556461), (143, 146855467), (1177, 17842253), (1391, 15097291), (1573, 13350497), (12947, 1622023), (15301, 1372481), (124771, 168311)]