20741571

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 31023200

約数和(自身を除く): 10281629

約数列:

[1, 3, 9, 37, 111, 199, 313, 333, 597, 939, 1791, 2817, 7363, 11581, 22089, 34743, 62287, 66267, 104229, 186861, 560583, 2304619, 6913857, 20741571]

約数ペア:

[(1, 20741571), (3, 6913857), (9, 2304619), (37, 560583), (111, 186861), (199, 104229), (313, 66267), (333, 62287), (597, 34743), (939, 22089), (1791, 11581), (2817, 7363)]