21228956

素因数分解:

$2^2\times 7^3\times {\mathrm{15473}}^1$

素因数の和:15498

約数の個数: 24

約数和(自身を含む): 43327200

約数和(自身を除く): 22098244

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 15473, 30946, 61892, 108311, 216622, 433244, 758177, 1516354, 3032708, 5307239, 10614478, 21228956]

約数ペア:

[(1, 21228956), (2, 10614478), (4, 5307239), (7, 3032708), (14, 1516354), (28, 758177), (49, 433244), (98, 216622), (196, 108311), (343, 61892), (686, 30946), (1372, 15473)]