28689213

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{31771}}^1$

素因数の和:31824

約数の個数: 16

約数和(自身を含む): 44734976

約数和(自身を除く): 16045763

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 31771, 95313, 222397, 667191, 1366153, 4098459, 9563071, 28689213]

約数ペア:

[(1, 28689213), (3, 9563071), (7, 4098459), (21, 1366153), (43, 667191), (129, 222397), (301, 95313), (903, 31771)]