21281052

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{136417}}^1$

素因数の和:136437

約数の個数: 24

約数和(自身を含む): 53475856

約数和(自身を除く): 32194804

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 136417, 272834, 409251, 545668, 818502, 1637004, 1773421, 3546842, 5320263, 7093684, 10640526, 21281052]

約数ペア:

[(1, 21281052), (2, 10640526), (3, 7093684), (4, 5320263), (6, 3546842), (12, 1773421), (13, 1637004), (26, 818502), (39, 545668), (52, 409251), (78, 272834), (156, 136417)]