81720081

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{9181}}^1$

素因数の和:9253

約数の個数: 24

約数和(自身を含む): 126050496

約数和(自身を除く): 44330415

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2967, 8901, 9181, 27543, 82629, 211163, 394783, 633489, 1184349, 1900467, 3553047, 9080009, 27240027, 81720081]

約数ペア:

[(1, 81720081), (3, 27240027), (9, 9080009), (23, 3553047), (43, 1900467), (69, 1184349), (129, 633489), (207, 394783), (387, 211163), (989, 82629), (2967, 27543), (8901, 9181)]