20839158

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{8329}}^1$

素因数の和:8476

約数の個数: 24

約数和(自身を含む): 45481800

約数和(自身を除く): 24642642

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 8329, 16658, 24987, 49974, 74961, 149922, 1157731, 2315462, 3473193, 6946386, 10419579, 20839158]

約数ペア:

[(1, 20839158), (2, 10419579), (3, 6946386), (6, 3473193), (9, 2315462), (18, 1157731), (139, 149922), (278, 74961), (417, 49974), (834, 24987), (1251, 16658), (2502, 8329)]