128520441

素因数分解:

$3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{21031}}^1$

素因数の和:21141

約数の個数: 24

約数和(自身を含む): 214358144

約数和(自身を除く): 85837703

約数列:

[1, 3, 7, 9, 21, 63, 97, 291, 679, 873, 2037, 6111, 21031, 63093, 147217, 189279, 441651, 1324953, 2040007, 6120021, 14280049, 18360063, 42840147, 128520441]

約数ペア:

[(1, 128520441), (3, 42840147), (7, 18360063), (9, 14280049), (21, 6120021), (63, 2040007), (97, 1324953), (291, 441651), (679, 189279), (873, 147217), (2037, 63093), (6111, 21031)]