520069389

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{208111}}^1$

素因数の和:208145

約数の個数: 24

約数和(自身を含む): 854091648

約数和(自身を除く): 334022259

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 208111, 624333, 1456777, 3537887, 4370331, 10197439, 10613661, 24765209, 30592317, 74295627, 173356463, 520069389]

約数ペア:

[(1, 520069389), (3, 173356463), (7, 74295627), (17, 30592317), (21, 24765209), (49, 10613661), (51, 10197439), (119, 4370331), (147, 3537887), (357, 1456777), (833, 624333), (2499, 208111)]