21051508

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{353}}^1\times {\mathrm{877}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 39162312

約数和(自身を除く): 18110804

約数列:

[1, 2, 4, 17, 34, 68, 353, 706, 877, 1412, 1754, 3508, 6001, 12002, 14909, 24004, 29818, 59636, 309581, 619162, 1238324, 5262877, 10525754, 21051508]

約数ペア:

[(1, 21051508), (2, 10525754), (4, 5262877), (17, 1238324), (34, 619162), (68, 309581), (353, 59636), (706, 29818), (877, 24004), (1412, 14909), (1754, 12002), (3508, 6001)]