18647739

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{20929}}^1$

素因数の和:20952

約数の個数: 20

約数和(自身を含む): 30390360

約数和(自身を除く): 11742621

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 20929, 62787, 188361, 230219, 565083, 690657, 1695249, 2071971, 6215913, 18647739]

約数ペア:

[(1, 18647739), (3, 6215913), (9, 2071971), (11, 1695249), (27, 690657), (33, 565083), (81, 230219), (99, 188361), (297, 62787), (891, 20929)]