18901790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{111187}}^1$

素因数の和:111211

約数の個数: 16

約数和(自身を含む): 36024912

約数和(自身を除く): 17123122

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 111187, 222374, 555935, 1111870, 1890179, 3780358, 9450895, 18901790]

約数ペア:

[(1, 18901790), (2, 9450895), (5, 3780358), (10, 1890179), (17, 1111870), (34, 555935), (85, 222374), (170, 111187)]