81409149

素因数分解:

$3^2\times {\mathrm{41}}^2\times {\mathrm{5381}}^1$

素因数の和:5469

約数の個数: 18

約数和(自身を含む): 120551418

約数和(自身を除く): 39142269

約数列:

[1, 3, 9, 41, 123, 369, 1681, 5043, 5381, 15129, 16143, 48429, 220621, 661863, 1985589, 9045461, 27136383, 81409149]

約数ペア:

[(1, 81409149), (3, 27136383), (9, 9045461), (41, 1985589), (123, 661863), (369, 220621), (1681, 48429), (5043, 16143), (5381, 15129)]