865487961

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{172031}}^1$

素因数の和:172093

約数の個数: 24

約数和(自身を含む): 1377632256

約数和(自身を除く): 512144295

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 5031, 172031, 516093, 1548279, 2236403, 6709209, 7397333, 20127627, 22191999, 66575997, 96165329, 288495987, 865487961]

約数ペア:

[(1, 865487961), (3, 288495987), (9, 96165329), (13, 66575997), (39, 22191999), (43, 20127627), (117, 7397333), (129, 6709209), (387, 2236403), (559, 1548279), (1677, 516093), (5031, 172031)]