28288281

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31327}}^1$

素因数の和:31380

約数の個数: 16

約数和(自身を含む): 44109824

約数和(自身を除く): 15821543

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 31327, 93981, 219289, 657867, 1347061, 4041183, 9429427, 28288281]

約数ペア:

[(1, 28288281), (3, 9429427), (7, 4041183), (21, 1347061), (43, 657867), (129, 219289), (301, 93981), (903, 31327)]