878121

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:342

約数の個数: 20

約数和(自身を含む): 1351812

約数和(自身を除く): 473691

約数列:

[1, 3, 9, 27, 37, 81, 111, 293, 333, 879, 999, 2637, 2997, 7911, 10841, 23733, 32523, 97569, 292707, 878121]

約数ペア:

[(1, 878121), (3, 292707), (9, 97569), (27, 32523), (37, 23733), (81, 10841), (111, 7911), (293, 2997), (333, 2637), (879, 999)]