81858519

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{59447}}^1$

素因数の和:59476

約数の個数: 20

約数和(自身を含む): 129477744

約数和(自身を除く): 47619225

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 59447, 178341, 535023, 1010599, 1605069, 3031797, 4815207, 9095391, 27286173, 81858519]

約数ペア:

[(1, 81858519), (3, 27286173), (9, 9095391), (17, 4815207), (27, 3031797), (51, 1605069), (81, 1010599), (153, 535023), (459, 178341), (1377, 59447)]