21081084

素因数分解:

$2^2\times 3^1\times {\mathrm{523}}^1\times {\mathrm{3359}}^1$

素因数の和:3889

約数の個数: 24

約数和(自身を含む): 49297920

約数和(自身を除く): 28216836

約数列:

[1, 2, 3, 4, 6, 12, 523, 1046, 1569, 2092, 3138, 3359, 6276, 6718, 10077, 13436, 20154, 40308, 1756757, 3513514, 5270271, 7027028, 10540542, 21081084]

約数ペア:

[(1, 21081084), (2, 10540542), (3, 7027028), (4, 5270271), (6, 3513514), (12, 1756757), (523, 40308), (1046, 20154), (1569, 13436), (2092, 10077), (3138, 6718), (3359, 6276)]