71315721

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{311}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 113256000

約数和(自身を除く): 41940279

約数列:

[1, 3, 9, 19, 27, 57, 81, 149, 171, 311, 447, 513, 933, 1341, 1539, 2799, 2831, 4023, 5909, 8397, 8493, 12069, 17727, 25191, 25479, 46339, 53181, 76437, 139017, 159543, 229311, 417051, 478629, 880441, 1251153, 2641323, 3753459, 7923969, 23771907, 71315721]

約数ペア:

[(1, 71315721), (3, 23771907), (9, 7923969), (19, 3753459), (27, 2641323), (57, 1251153), (81, 880441), (149, 478629), (171, 417051), (311, 229311), (447, 159543), (513, 139017), (933, 76437), (1341, 53181), (1539, 46339), (2799, 25479), (2831, 25191), (4023, 17727), (5909, 12069), (8397, 8493)]