28305783

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4027}}^1$

素因数の和:4115

約数の個数: 24

約数和(自身を含む): 45242496

約数和(自身を除く): 16936713

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 4027, 7029, 12081, 36243, 44297, 132891, 285917, 398673, 857751, 2573253, 3145087, 9435261, 28305783]

約数ペア:

[(1, 28305783), (3, 9435261), (9, 3145087), (11, 2573253), (33, 857751), (71, 398673), (99, 285917), (213, 132891), (639, 44297), (781, 36243), (2343, 12081), (4027, 7029)]