21897854

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{2207}}^1$

素因数の和:2272

約数の個数: 24

約数和(自身を含む): 37001664

約数和(自身を除く): 15103810

約数列:

[1, 2, 11, 22, 41, 82, 121, 242, 451, 902, 2207, 4414, 4961, 9922, 24277, 48554, 90487, 180974, 267047, 534094, 995357, 1990714, 10948927, 21897854]

約数ペア:

[(1, 21897854), (2, 10948927), (11, 1990714), (22, 995357), (41, 534094), (82, 267047), (121, 180974), (242, 90487), (451, 48554), (902, 24277), (2207, 9922), (4414, 4961)]