21039111

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1033}}^1$

素因数の和:1143

約数の個数: 24

約数和(自身を含む): 31830656

約数和(自身を除く): 10791545

約数列:

[1, 3, 9, 31, 73, 93, 219, 279, 657, 1033, 2263, 3099, 6789, 9297, 20367, 32023, 75409, 96069, 226227, 288207, 678681, 2337679, 7013037, 21039111]

約数ペア:

[(1, 21039111), (3, 7013037), (9, 2337679), (31, 678681), (73, 288207), (93, 226227), (219, 96069), (279, 75409), (657, 32023), (1033, 20367), (2263, 9297), (3099, 6789)]