28438509

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 42028000

約数和(自身を除く): 13589491

約数列:

[1, 3, 11, 33, 121, 157, 363, 471, 499, 1497, 1727, 5181, 5489, 16467, 18997, 56991, 60379, 78343, 181137, 235029, 861773, 2585319, 9479503, 28438509]

約数ペア:

[(1, 28438509), (3, 9479503), (11, 2585319), (33, 861773), (121, 235029), (157, 181137), (363, 78343), (471, 60379), (499, 56991), (1497, 18997), (1727, 16467), (5181, 5489)]