20718610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{188351}}^1$

素因数の和:188369

約数の個数: 16

約数和(自身を含む): 40684032

約数和(自身を除く): 19965422

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 188351, 376702, 941755, 1883510, 2071861, 4143722, 10359305, 20718610]

約数ペア:

[(1, 20718610), (2, 10359305), (5, 4143722), (10, 2071861), (11, 1883510), (22, 941755), (55, 376702), (110, 188351)]