21096980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45863}}^1$

素因数の和:45895

約数の個数: 24

約数和(自身を含む): 46230912

約数和(自身を除く): 25133932

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45863, 91726, 183452, 229315, 458630, 917260, 1054849, 2109698, 4219396, 5274245, 10548490, 21096980]

約数ペア:

[(1, 21096980), (2, 10548490), (4, 5274245), (5, 4219396), (10, 2109698), (20, 1054849), (23, 917260), (46, 458630), (92, 229315), (115, 183452), (230, 91726), (460, 45863)]