18006220

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{16987}}^1$

素因数の和:17049

約数の個数: 24

約数和(自身を含む): 38528784

約数和(自身を除く): 20522564

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 16987, 33974, 67948, 84935, 169870, 339740, 900311, 1800622, 3601244, 4501555, 9003110, 18006220]

約数ペア:

[(1, 18006220), (2, 9003110), (4, 4501555), (5, 3601244), (10, 1800622), (20, 900311), (53, 339740), (106, 169870), (212, 84935), (265, 67948), (530, 33974), (1060, 16987)]