28920381

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{32027}}^1$

素因数の和:32080

約数の個数: 16

約数和(自身を含む): 45095424

約数和(自身を除く): 16175043

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 32027, 96081, 224189, 672567, 1377161, 4131483, 9640127, 28920381]

約数ペア:

[(1, 28920381), (3, 9640127), (7, 4131483), (21, 1377161), (43, 672567), (129, 224189), (301, 96081), (903, 32027)]