81820719

素因数分解:

$3^3\times {\mathrm{307}}^1\times {\mathrm{9871}}^1$

素因数の和:10187

約数の個数: 16

約数和(自身を含む): 121623040

約数和(自身を除く): 39802321

約数列:

[1, 3, 9, 27, 307, 921, 2763, 8289, 9871, 29613, 88839, 266517, 3030397, 9091191, 27273573, 81820719]

約数ペア:

[(1, 81820719), (3, 27273573), (9, 9091191), (27, 3030397), (307, 266517), (921, 88839), (2763, 29613), (8289, 9871)]