28172871

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{44089}}^1$

素因数の和:44166

約数の個数: 12

約数和(自身を含む): 41268240

約数和(自身を除く): 13095369

約数列:

[1, 3, 9, 71, 213, 639, 44089, 132267, 396801, 3130319, 9390957, 28172871]

約数ペア:

[(1, 28172871), (3, 9390957), (9, 3130319), (71, 396801), (213, 132267), (639, 44089)]