81705753

素因数分解:

$3^4\times {\mathrm{181}}^1\times {\mathrm{5573}}^1$

素因数の和:5766

約数の個数: 20

約数和(自身を含む): 122750628

約数和(自身を除く): 41044875

約数列:

[1, 3, 9, 27, 81, 181, 543, 1629, 4887, 5573, 14661, 16719, 50157, 150471, 451413, 1008713, 3026139, 9078417, 27235251, 81705753]

約数ペア:

[(1, 81705753), (3, 27235251), (9, 9078417), (27, 3026139), (81, 1008713), (181, 451413), (543, 150471), (1629, 50157), (4887, 16719), (5573, 14661)]