20974461

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 29955744

約数和(自身を除く): 8981283

約数列:

[1, 3, 19, 57, 107, 181, 321, 361, 543, 1083, 2033, 3439, 6099, 10317, 19367, 38627, 58101, 65341, 115881, 196023, 367973, 1103919, 6991487, 20974461]

約数ペア:

[(1, 20974461), (3, 6991487), (19, 1103919), (57, 367973), (107, 196023), (181, 115881), (321, 65341), (361, 58101), (543, 38627), (1083, 19367), (2033, 10317), (3439, 6099)]