21395803

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{953}}^1$

素因数の和:1134

約数の個数: 16

約数和(自身を含む): 25322976

約数和(自身を除く): 3927173

約数列:

[1, 11, 13, 143, 157, 953, 1727, 2041, 10483, 12389, 22451, 136279, 149621, 1645831, 1945073, 21395803]

約数ペア:

[(1, 21395803), (11, 1945073), (13, 1645831), (143, 149621), (157, 136279), (953, 22451), (1727, 12389), (2041, 10483)]