16988211

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{1601}}^1$

素因数の和:1744

約数の個数: 20

約数和(自身を含む): 25587144

約数和(自身を除く): 8598933

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 1601, 3537, 4803, 10611, 14409, 43227, 129681, 209731, 629193, 1887579, 5662737, 16988211]

約数ペア:

[(1, 16988211), (3, 5662737), (9, 1887579), (27, 629193), (81, 209731), (131, 129681), (393, 43227), (1179, 14409), (1601, 10611), (3537, 4803)]