20512991529

素因数分解:

$3^5\times {\mathrm{157}}^1\times {\mathrm{537679}}^1$

素因数の和:537851

約数の個数: 24

約数和(自身を含む): 30923052160

約数和(自身を除く): 10410060631

約数列:

[1, 3, 9, 27, 81, 157, 243, 471, 1413, 4239, 12717, 38151, 537679, 1613037, 4839111, 14517333, 43551999, 84415603, 130655997, 253246809, 759740427, 2279221281, 6837663843, 20512991529]

約数ペア:

[(1, 20512991529), (3, 6837663843), (9, 2279221281), (27, 759740427), (81, 253246809), (157, 130655997), (243, 84415603), (471, 43551999), (1413, 14517333), (4239, 4839111), (12717, 1613037), (38151, 537679)]