21689148

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139033}}^1$

素因数の和:139053

約数の個数: 24

約数和(自身を含む): 54501328

約数和(自身を除く): 32812180

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139033, 278066, 417099, 556132, 834198, 1668396, 1807429, 3614858, 5422287, 7229716, 10844574, 21689148]

約数ペア:

[(1, 21689148), (2, 10844574), (3, 7229716), (4, 5422287), (6, 3614858), (12, 1807429), (13, 1668396), (26, 834198), (39, 556132), (52, 417099), (78, 278066), (156, 139033)]