21000604792

素因数分解:

$2^3\times {\mathrm{313}}^1\times {\mathrm{8386823}}^1$

素因数の和:8387142

約数の個数: 16

約数和(自身を含む): 39501941040

約数和(自身を除く): 18501336248

約数列:

[1, 2, 4, 8, 313, 626, 1252, 2504, 8386823, 16773646, 33547292, 67094584, 2625075599, 5250151198, 10500302396, 21000604792]

約数ペア:

[(1, 21000604792), (2, 10500302396), (4, 5250151198), (8, 2625075599), (313, 67094584), (626, 33547292), (1252, 16773646), (2504, 8386823)]