19992428397

素因数分解:

$3^3\times {\mathrm{1427}}^1\times {\mathrm{518893}}^1$

素因数の和:520329

約数の個数: 16

約数和(自身を含む): 29639225280

約数和(自身を除く): 9646796883

約数列:

[1, 3, 9, 27, 1427, 4281, 12843, 38529, 518893, 1556679, 4670037, 14010111, 740460311, 2221380933, 6664142799, 19992428397]

約数ペア:

[(1, 19992428397), (3, 6664142799), (9, 2221380933), (27, 740460311), (1427, 14010111), (4281, 4670037), (12843, 1556679), (38529, 518893)]