20407640319

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2609339}}^1$

素因数の和:2609435

約数の個数: 24

約数和(自身を含む): 32564563200

約数和(自身を除く): 12156922881

約数列:

[1, 3, 9, 11, 33, 79, 99, 237, 711, 869, 2607, 7821, 2609339, 7828017, 23484051, 28702729, 86108187, 206137781, 258324561, 618413343, 1855240029, 2267515591, 6802546773, 20407640319]

約数ペア:

[(1, 20407640319), (3, 6802546773), (9, 2267515591), (11, 1855240029), (33, 618413343), (79, 258324561), (99, 206137781), (237, 86108187), (711, 28702729), (869, 23484051), (2607, 7828017), (7821, 2609339)]