21145542

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{320387}}^1$

素因数の和:320403

約数の個数: 16

約数和(自身を含む): 46135872

約数和(自身を除く): 24990330

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 320387, 640774, 961161, 1922322, 3524257, 7048514, 10572771, 21145542]

約数ペア:

[(1, 21145542), (2, 10572771), (3, 7048514), (6, 3524257), (11, 1922322), (22, 961161), (33, 640774), (66, 320387)]