8681972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{839}}^1$

素因数の和:1055

約数の個数: 24

約数和(自身を含む): 16464000

約数和(自身を除く): 7782028

約数列:

[1, 2, 4, 13, 26, 52, 199, 398, 796, 839, 1678, 2587, 3356, 5174, 10348, 10907, 21814, 43628, 166961, 333922, 667844, 2170493, 4340986, 8681972]

約数ペア:

[(1, 8681972), (2, 4340986), (4, 2170493), (13, 667844), (26, 333922), (52, 166961), (199, 43628), (398, 21814), (796, 10907), (839, 10348), (1678, 5174), (2587, 3356)]