21046828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2267}}^1$

素因数の和:2493

約数の個数: 24

約数和(自身を含む): 40388544

約数和(自身を除く): 19341716

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 2267, 2321, 4534, 4642, 9068, 9284, 24937, 49874, 99748, 478337, 956674, 1913348, 5261707, 10523414, 21046828]

約数ペア:

[(1, 21046828), (2, 10523414), (4, 5261707), (11, 1913348), (22, 956674), (44, 478337), (211, 99748), (422, 49874), (844, 24937), (2267, 9284), (2321, 9068), (4534, 4642)]