81553581

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{28229}}^1$

素因数の和:28345

約数の個数: 16

約数和(自身を含む): 121953600

約数和(自身を除く): 40400019

約数列:

[1, 3, 9, 27, 107, 321, 963, 2889, 28229, 84687, 254061, 762183, 3020503, 9061509, 27184527, 81553581]

約数ペア:

[(1, 81553581), (3, 27184527), (9, 9061509), (27, 3020503), (107, 762183), (321, 254061), (963, 84687), (2889, 28229)]