218630993

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{43319}}^1$

素因数の和:43436

約数の個数: 12

約数和(自身を含む): 256800960

約数和(自身を除く): 38169967

約数列:

[1, 7, 49, 103, 721, 5047, 43319, 303233, 2122631, 4461857, 31232999, 218630993]

約数ペア:

[(1, 218630993), (7, 31232999), (49, 4461857), (103, 2122631), (721, 303233), (5047, 43319)]