21061804

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2857}}^1$

素因数の和:2977

約数の個数: 24

約数和(自身を含む): 39211760

約数和(自身を除く): 18149956

約数列:

[1, 2, 4, 19, 38, 76, 97, 194, 388, 1843, 2857, 3686, 5714, 7372, 11428, 54283, 108566, 217132, 277129, 554258, 1108516, 5265451, 10530902, 21061804]

約数ペア:

[(1, 21061804), (2, 10530902), (4, 5265451), (19, 1108516), (38, 554258), (76, 277129), (97, 217132), (194, 108566), (388, 54283), (1843, 11428), (2857, 7372), (3686, 5714)]