81867345

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{883}}^2$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 149870016

約数和(自身を除く): 68002671

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 883, 2649, 4415, 6181, 13245, 18543, 30905, 92715, 779689, 2339067, 3898445, 5457823, 11695335, 16373469, 27289115, 81867345]

約数ペア:

[(1, 81867345), (3, 27289115), (5, 16373469), (7, 11695335), (15, 5457823), (21, 3898445), (35, 2339067), (105, 779689), (883, 92715), (2649, 30905), (4415, 18543), (6181, 13245)]