81882081

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{31481}}^1$

素因数の和:31521

約数の個数: 18

約数和(自身を含む): 125644662

約数和(自身を除く): 43762581

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 31481, 94443, 283329, 535177, 1605531, 4816593, 9098009, 27294027, 81882081]

約数ペア:

[(1, 81882081), (3, 27294027), (9, 9098009), (17, 4816593), (51, 1605531), (153, 535177), (289, 283329), (867, 94443), (2601, 31481)]