21528116

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{881}}^1$

素因数の和:1075

約数の個数: 24

約数和(自身を含む): 38896200

約数和(自身を除く): 17368084

約数列:

[1, 2, 4, 41, 82, 149, 164, 298, 596, 881, 1762, 3524, 6109, 12218, 24436, 36121, 72242, 131269, 144484, 262538, 525076, 5382029, 10764058, 21528116]

約数ペア:

[(1, 21528116), (2, 10764058), (4, 5382029), (41, 525076), (82, 262538), (149, 144484), (164, 131269), (298, 72242), (596, 36121), (881, 24436), (1762, 12218), (3524, 6109)]