81469557

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{77369}}^1$

素因数の和:77394

約数の個数: 20

約数和(自身を含む): 131064780

約数和(自身を除く): 49595223

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 77369, 232107, 696321, 1005797, 2088963, 3017391, 6266889, 9052173, 27156519, 81469557]

約数ペア:

[(1, 81469557), (3, 27156519), (9, 9052173), (13, 6266889), (27, 3017391), (39, 2088963), (81, 1005797), (117, 696321), (351, 232107), (1053, 77369)]