16878987

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1117}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 25812384

約数和(自身を除く): 8933397

約数列:

[1, 3, 9, 23, 69, 73, 207, 219, 657, 1117, 1679, 3351, 5037, 10053, 15111, 25691, 77073, 81541, 231219, 244623, 733869, 1875443, 5626329, 16878987]

約数ペア:

[(1, 16878987), (3, 5626329), (9, 1875443), (23, 733869), (69, 244623), (73, 231219), (207, 81541), (219, 77073), (657, 25691), (1117, 15111), (1679, 10053), (3351, 5037)]