19908792063

素因数分解:

$3^3\times {\mathrm{97}}^1\times {\mathrm{2657}}^1\times {\mathrm{2861}}^1$

素因数の和:5624

約数の個数: 32

約数和(自身を含む): 29820208320

約数和(自身を除く): 9911416257

約数列:

[1, 3, 9, 27, 97, 291, 873, 2619, 2657, 2861, 7971, 8583, 23913, 25749, 71739, 77247, 257729, 277517, 773187, 832551, 2319561, 2497653, 6958683, 7492959, 7601677, 22805031, 68415093, 205245279, 737362669, 2212088007, 6636264021, 19908792063]

約数ペア:

[(1, 19908792063), (3, 6636264021), (9, 2212088007), (27, 737362669), (97, 205245279), (291, 68415093), (873, 22805031), (2619, 7601677), (2657, 7492959), (2861, 6958683), (7971, 2497653), (8583, 2319561), (23913, 832551), (25749, 773187), (71739, 277517), (77247, 257729)]