28811871

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4099}}^1$

素因数の和:4187

約数の個数: 24

約数和(自身を含む): 46051200

約数和(自身を除く): 17239329

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 4099, 7029, 12297, 36891, 45089, 135267, 291029, 405801, 873087, 2619261, 3201319, 9603957, 28811871]

約数ペア:

[(1, 28811871), (3, 9603957), (9, 3201319), (11, 2619261), (33, 873087), (71, 405801), (99, 291029), (213, 135267), (639, 45089), (781, 36891), (2343, 12297), (4099, 7029)]