20911070

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4967}}^1$

素因数の和:5395

約数の個数: 16

約数和(自身を含む): 37736928

約数和(自身を除く): 16825858

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4967, 9934, 24835, 49670, 2091107, 4182214, 10455535, 20911070]

約数ペア:

[(1, 20911070), (2, 10455535), (5, 4182214), (10, 2091107), (421, 49670), (842, 24835), (2105, 9934), (4210, 4967)]