19989581613

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{20023}}^1$

素因数の和:20249

約数の個数: 32

約数和(自身を含む): 27911854080

約数和(自身を除く): 7922272467

約数列:

[1, 3, 43, 71, 109, 129, 213, 327, 3053, 4687, 7739, 9159, 14061, 20023, 23217, 60069, 332777, 860989, 998331, 1421633, 2182507, 2582967, 4264899, 6547521, 61130219, 93847801, 154957997, 183390657, 281543403, 464873991, 6663193871, 19989581613]

約数ペア:

[(1, 19989581613), (3, 6663193871), (43, 464873991), (71, 281543403), (109, 183390657), (129, 154957997), (213, 93847801), (327, 61130219), (3053, 6547521), (4687, 4264899), (7739, 2582967), (9159, 2182507), (14061, 1421633), (20023, 998331), (23217, 860989), (60069, 332777)]