28189414

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{18047}}^1$

素因数の和:18131

約数の個数: 16

約数和(自身を含む): 46780416

約数和(自身を除く): 18591002

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 18047, 36094, 198517, 397034, 1281337, 2562674, 14094707, 28189414]

約数ペア:

[(1, 28189414), (2, 14094707), (11, 2562674), (22, 1281337), (71, 397034), (142, 198517), (781, 36094), (1562, 18047)]