20866543

素因数分解:

${\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:366

約数の個数: 16

約数和(自身を含む): 22579200

約数和(自身を除く): 1712657

約数列:

[1, 23, 47, 97, 199, 1081, 2231, 4559, 4577, 9353, 19303, 104857, 215119, 443969, 907241, 20866543]

約数ペア:

[(1, 20866543), (23, 907241), (47, 443969), (97, 215119), (199, 104857), (1081, 19303), (2231, 9353), (4559, 4577)]