21066040

素因数分解:

$2^3\times 5^1\times {\mathrm{526651}}^1$

素因数の和:526662

約数の個数: 16

約数和(自身を含む): 47398680

約数和(自身を除く): 26332640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526651, 1053302, 2106604, 2633255, 4213208, 5266510, 10533020, 21066040]

約数ペア:

[(1, 21066040), (2, 10533020), (4, 5266510), (5, 4213208), (8, 2633255), (10, 2106604), (20, 1053302), (40, 526651)]