21166120

素因数分解:

$2^3\times 5^1\times {\mathrm{529153}}^1$

素因数の和:529164

約数の個数: 16

約数和(自身を含む): 47623860

約数和(自身を除く): 26457740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 529153, 1058306, 2116612, 2645765, 4233224, 5291530, 10583060, 21166120]

約数ペア:

[(1, 21166120), (2, 10583060), (4, 5291530), (5, 4233224), (8, 2645765), (10, 2116612), (20, 1058306), (40, 529153)]