21069545

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{2083}}^1$

素因数の和:2129

約数の個数: 24

約数和(自身を含む): 30709824

約数和(自身を除く): 9640279

約数列:

[1, 5, 7, 17, 35, 85, 119, 289, 595, 1445, 2023, 2083, 10115, 10415, 14581, 35411, 72905, 177055, 247877, 601987, 1239385, 3009935, 4213909, 21069545]

約数ペア:

[(1, 21069545), (5, 4213909), (7, 3009935), (17, 1239385), (35, 601987), (85, 247877), (119, 177055), (289, 72905), (595, 35411), (1445, 14581), (2023, 10415), (2083, 10115)]