18278222

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1777}}^1$

素因数の和:1955

約数の個数: 16

約数和(自身を含む): 28376880

約数和(自身を除く): 10098658

約数列:

[1, 2, 37, 74, 139, 278, 1777, 3554, 5143, 10286, 65749, 131498, 247003, 494006, 9139111, 18278222]

約数ペア:

[(1, 18278222), (2, 9139111), (37, 494006), (74, 247003), (139, 131498), (278, 65749), (1777, 10286), (3554, 5143)]