28727901

素因数分解:

$3^2\times {\mathrm{151}}^1\times {\mathrm{21139}}^1$

素因数の和:21296

約数の個数: 12

約数和(自身を含む): 41772640

約数和(自身を除く): 13044739

約数列:

[1, 3, 9, 151, 453, 1359, 21139, 63417, 190251, 3191989, 9575967, 28727901]

約数ペア:

[(1, 28727901), (3, 9575967), (9, 3191989), (151, 190251), (453, 63417), (1359, 21139)]