21330782

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{1861}}^1$

素因数の和:2395

約数の個数: 16

約数和(自身を含む): 34990704

約数和(自身を除く): 13659922

約数列:

[1, 2, 11, 22, 521, 1042, 1861, 3722, 5731, 11462, 20471, 40942, 969581, 1939162, 10665391, 21330782]

約数ペア:

[(1, 21330782), (2, 10665391), (11, 1939162), (22, 969581), (521, 40942), (1042, 20471), (1861, 11462), (3722, 5731)]