21331070

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52027}}^1$

素因数の和:52075

約数の個数: 16

約数和(自身を含む): 39333168

約数和(自身を除く): 18002098

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52027, 104054, 260135, 520270, 2133107, 4266214, 10665535, 21331070]

約数ペア:

[(1, 21331070), (2, 10665535), (5, 4266214), (10, 2133107), (41, 520270), (82, 260135), (205, 104054), (410, 52027)]