21521054

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{2351}}^1$

素因数の和:2575

約数の個数: 16

約数和(自身を含む): 33868800

約数和(自身を除く): 12347746

約数列:

[1, 2, 23, 46, 199, 398, 2351, 4577, 4702, 9154, 54073, 108146, 467849, 935698, 10760527, 21521054]

約数ペア:

[(1, 21521054), (2, 10760527), (23, 935698), (46, 467849), (199, 108146), (398, 54073), (2351, 9154), (4577, 4702)]