7872309

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{5717}}^1$

素因数の和:5746

約数の個数: 20

約数和(自身を含む): 12453804

約数和(自身を除く): 4581495

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 5717, 17151, 51453, 97189, 154359, 291567, 463077, 874701, 2624103, 7872309]

約数ペア:

[(1, 7872309), (3, 2624103), (9, 874701), (17, 463077), (27, 291567), (51, 154359), (81, 97189), (153, 51453), (459, 17151), (1377, 5717)]