21556108

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40519}}^1$

素因数の和:40549

約数の個数: 24

約数和(自身を含む): 45382400

約数和(自身を除く): 23826292

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40519, 81038, 162076, 283633, 567266, 769861, 1134532, 1539722, 3079444, 5389027, 10778054, 21556108]

約数ペア:

[(1, 21556108), (2, 10778054), (4, 5389027), (7, 3079444), (14, 1539722), (19, 1134532), (28, 769861), (38, 567266), (76, 283633), (133, 162076), (266, 81038), (532, 40519)]