81627147

素因数分解:

$3^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{6577}}^1$

素因数の和:6787

約数の個数: 24

約数和(自身を含む): 135454176

約数和(自身を除く): 53827029

約数列:

[1, 3, 7, 9, 21, 63, 197, 591, 1379, 1773, 4137, 6577, 12411, 19731, 46039, 59193, 138117, 414351, 1295669, 3887007, 9069683, 11661021, 27209049, 81627147]

約数ペア:

[(1, 81627147), (3, 27209049), (7, 11661021), (9, 9069683), (21, 3887007), (63, 1295669), (197, 414351), (591, 138117), (1379, 59193), (1773, 46039), (4137, 19731), (6577, 12411)]