17998477

素因数分解:

$7^1\times {\mathrm{61}}^2\times {\mathrm{691}}^1$

素因数の和:820

約数の個数: 12

約数和(自身を含む): 20942688

約数和(自身を除く): 2944211

約数列:

[1, 7, 61, 427, 691, 3721, 4837, 26047, 42151, 295057, 2571211, 17998477]

約数ペア:

[(1, 17998477), (7, 2571211), (61, 295057), (427, 42151), (691, 26047), (3721, 4837)]