21810470

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198277}}^1$

素因数の和:198295

約数の個数: 16

約数和(自身を含む): 42828048

約数和(自身を除く): 21017578

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198277, 396554, 991385, 1982770, 2181047, 4362094, 10905235, 21810470]

約数ペア:

[(1, 21810470), (2, 10905235), (5, 4362094), (10, 2181047), (11, 1982770), (22, 991385), (55, 396554), (110, 198277)]