81221613

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{20341}}^1$

素因数の和:20377

約数の個数: 16

約数和(自身を含む): 119122752

約数和(自身を除く): 37901139

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 20341, 61023, 223751, 671253, 2461261, 7383783, 27073871, 81221613]

約数ペア:

[(1, 81221613), (3, 27073871), (11, 7383783), (33, 2461261), (121, 671253), (363, 223751), (1331, 61023), (3993, 20341)]