20672421

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89491}}^1$

素因数の和:89512

約数の個数: 16

約数和(自身を含む): 34364928

約数和(自身を除く): 13692507

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 89491, 268473, 626437, 984401, 1879311, 2953203, 6890807, 20672421]

約数ペア:

[(1, 20672421), (3, 6890807), (7, 2953203), (11, 1879311), (21, 984401), (33, 626437), (77, 268473), (231, 89491)]