21405084

素因数分解:

$2^2\times 3^1\times {\mathrm{887}}^1\times {\mathrm{2011}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 50026368

約数和(自身を除く): 28621284

約数列:

[1, 2, 3, 4, 6, 12, 887, 1774, 2011, 2661, 3548, 4022, 5322, 6033, 8044, 10644, 12066, 24132, 1783757, 3567514, 5351271, 7135028, 10702542, 21405084]

約数ペア:

[(1, 21405084), (2, 10702542), (3, 7135028), (4, 5351271), (6, 3567514), (12, 1783757), (887, 24132), (1774, 12066), (2011, 10644), (2661, 8044), (3548, 6033), (4022, 5322)]