20810356

素因数分解:

$2^2\times 7^1\times {\mathrm{439}}^1\times {\mathrm{1693}}^1$

素因数の和:2143

約数の個数: 24

約数和(自身を含む): 41740160

約数和(自身を除く): 20929804

約数列:

[1, 2, 4, 7, 14, 28, 439, 878, 1693, 1756, 3073, 3386, 6146, 6772, 11851, 12292, 23702, 47404, 743227, 1486454, 2972908, 5202589, 10405178, 20810356]

約数ペア:

[(1, 20810356), (2, 10405178), (4, 5202589), (7, 2972908), (14, 1486454), (28, 743227), (439, 47404), (878, 23702), (1693, 12292), (1756, 11851), (3073, 6772), (3386, 6146)]