18883390

素因数分解:

$2^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{7901}}^1$

素因数の和:8147

約数の個数: 16

約数和(自身を含む): 34136640

約数和(自身を除く): 15253250

約数列:

[1, 2, 5, 10, 239, 478, 1195, 2390, 7901, 15802, 39505, 79010, 1888339, 3776678, 9441695, 18883390]

約数ペア:

[(1, 18883390), (2, 9441695), (5, 3776678), (10, 1888339), (239, 79010), (478, 39505), (1195, 15802), (2390, 7901)]