20857767

素因数分解:

$3^1\times 7^1\times {\mathrm{827}}^1\times {\mathrm{1201}}^1$

素因数の和:2038

約数の個数: 16

約数和(自身を含む): 31848192

約数和(自身を除く): 10990425

約数列:

[1, 3, 7, 21, 827, 1201, 2481, 3603, 5789, 8407, 17367, 25221, 993227, 2979681, 6952589, 20857767]

約数ペア:

[(1, 20857767), (3, 6952589), (7, 2979681), (21, 993227), (827, 25221), (1201, 17367), (2481, 8407), (3603, 5789)]