81684009

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{11621}}^1$

素因数の和:11709

約数の個数: 24

約数和(自身を含む): 130538304

約数和(自身を除く): 48854295

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 7029, 11621, 34863, 104589, 127831, 383493, 825091, 1150479, 2475273, 7425819, 9076001, 27228003, 81684009]

約数ペア:

[(1, 81684009), (3, 27228003), (9, 9076001), (11, 7425819), (33, 2475273), (71, 1150479), (99, 825091), (213, 383493), (639, 127831), (781, 104589), (2343, 34863), (7029, 11621)]