28689003

素因数分解:

$3^2\times 7^1\times {\mathrm{455381}}^1$

素因数の和:455394

約数の個数: 12

約数和(自身を含む): 47359728

約数和(自身を除く): 18670725

約数列:

[1, 3, 7, 9, 21, 63, 455381, 1366143, 3187667, 4098429, 9563001, 28689003]

約数ペア:

[(1, 28689003), (3, 9563001), (7, 4098429), (9, 3187667), (21, 1366143), (63, 455381)]