20815526

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12739}}^1$

素因数の和:12803

約数の個数: 16

約数和(自身を含む): 33633600

約数和(自身を除く): 12818074

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12739, 25478, 242041, 484082, 547777, 1095554, 10407763, 20815526]

約数ペア:

[(1, 20815526), (2, 10407763), (19, 1095554), (38, 547777), (43, 484082), (86, 242041), (817, 25478), (1634, 12739)]