19998333

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{1657}}^1$

素因数の和:1818

約数の個数: 20

約数和(自身を含む): 30092700

約数和(自身を除く): 10094367

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 1657, 4023, 4971, 12069, 14913, 44739, 134217, 246893, 740679, 2222037, 6666111, 19998333]

約数ペア:

[(1, 19998333), (3, 6666111), (9, 2222037), (27, 740679), (81, 246893), (149, 134217), (447, 44739), (1341, 14913), (1657, 12069), (4023, 4971)]