21061293

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{1279}}^1$

素因数の和:1792

約数の個数: 16

約数和(自身を含む): 30720000

約数和(自身を除く): 9658707

約数列:

[1, 3, 11, 33, 499, 1279, 1497, 3837, 5489, 14069, 16467, 42207, 638221, 1914663, 7020431, 21061293]

約数ペア:

[(1, 21061293), (3, 7020431), (11, 1914663), (33, 638221), (499, 42207), (1279, 16467), (1497, 14069), (3837, 5489)]