199445571

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{189407}}^1$

素因数の和:189432

約数の個数: 20

約数和(自身を含む): 320857152

約数和(自身を除く): 121411581

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 189407, 568221, 1704663, 2462291, 5113989, 7386873, 15341967, 22160619, 66481857, 199445571]

約数ペア:

[(1, 199445571), (3, 66481857), (9, 22160619), (13, 15341967), (27, 7386873), (39, 5113989), (81, 2462291), (117, 1704663), (351, 568221), (1053, 189407)]