28789131

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^2\times {\mathrm{199}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 44627200

約数和(自身を除く): 15838069

約数列:

[1, 3, 7, 21, 83, 199, 249, 581, 597, 1393, 1743, 4179, 6889, 16517, 20667, 48223, 49551, 115619, 144669, 346857, 1370911, 4112733, 9596377, 28789131]

約数ペア:

[(1, 28789131), (3, 9596377), (7, 4112733), (21, 1370911), (83, 346857), (199, 144669), (249, 115619), (581, 49551), (597, 48223), (1393, 20667), (1743, 16517), (4179, 6889)]