18171020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129793}}^1$

素因数の和:129809

約数の個数: 24

約数和(自身を含む): 43610784

約数和(自身を除く): 25439764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129793, 259586, 519172, 648965, 908551, 1297930, 1817102, 2595860, 3634204, 4542755, 9085510, 18171020]

約数ペア:

[(1, 18171020), (2, 9085510), (4, 4542755), (5, 3634204), (7, 2595860), (10, 1817102), (14, 1297930), (20, 908551), (28, 648965), (35, 519172), (70, 259586), (140, 129793)]