42840147

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{21031}}^1$

素因数の和:21138

約数の個数: 16

約数和(自身を含む): 65956352

約数和(自身を除く): 23116205

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 21031, 63093, 147217, 441651, 2040007, 6120021, 14280049, 42840147]

約数ペア:

[(1, 42840147), (3, 14280049), (7, 6120021), (21, 2040007), (97, 441651), (291, 147217), (679, 63093), (2037, 21031)]