21058120

素因数分解:

$2^3\times 5^1\times {\mathrm{526453}}^1$

素因数の和:526464

約数の個数: 16

約数和(自身を含む): 47380860

約数和(自身を除く): 26322740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526453, 1052906, 2105812, 2632265, 4211624, 5264530, 10529060, 21058120]

約数ペア:

[(1, 21058120), (2, 10529060), (4, 5264530), (5, 4211624), (8, 2632265), (10, 2105812), (20, 1052906), (40, 526453)]