19147995

素因数分解:

$3^4\times 5^1\times {\mathrm{47279}}^1$

素因数の和:47296

約数の個数: 20

約数和(自身を含む): 34325280

約数和(自身を除く): 15177285

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 47279, 141837, 236395, 425511, 709185, 1276533, 2127555, 3829599, 6382665, 19147995]

約数ペア:

[(1, 19147995), (3, 6382665), (5, 3829599), (9, 2127555), (15, 1276533), (27, 709185), (45, 425511), (81, 236395), (135, 141837), (405, 47279)]