18711445

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2076

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 4858475

約数列:

[1, 5, 31, 61, 155, 305, 1891, 1979, 9455, 9895, 61349, 120719, 306745, 603595, 3742289, 18711445]

約数ペア:

[(1, 18711445), (5, 3742289), (31, 603595), (61, 306745), (155, 120719), (305, 61349), (1891, 9895), (1979, 9455)]