21267542

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3691}}^1$

素因数の和:3803

約数の個数: 16

約数和(自身を含む): 33139392

約数和(自身を除く): 11871850

約数列:

[1, 2, 43, 67, 86, 134, 2881, 3691, 5762, 7382, 158713, 247297, 317426, 494594, 10633771, 21267542]

約数ペア:

[(1, 21267542), (2, 10633771), (43, 494594), (67, 317426), (86, 247297), (134, 158713), (2881, 7382), (3691, 5762)]