81297993

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{90031}}^1$

素因数の和:90084

約数の個数: 16

約数和(自身を含む): 126765056

約数和(自身を除く): 45467063

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 90031, 270093, 630217, 1890651, 3871333, 11613999, 27099331, 81297993]

約数ペア:

[(1, 81297993), (3, 27099331), (7, 11613999), (21, 3871333), (43, 1890651), (129, 630217), (301, 270093), (903, 90031)]