81243567

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{43609}}^1$

素因数の和:43644

約数の個数: 20

約数和(自身を含む): 126643440

約数和(自身を除く): 45399873

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 43609, 130827, 392481, 1003007, 1177443, 3009021, 3532329, 9027063, 27081189, 81243567]

約数ペア:

[(1, 81243567), (3, 27081189), (9, 9027063), (23, 3532329), (27, 3009021), (69, 1177443), (81, 1003007), (207, 392481), (621, 130827), (1863, 43609)]