81224721

素因数分解:

$3^3\times {\mathrm{43}}^2\times {\mathrm{1627}}^1$

素因数の和:1722

約数の個数: 24

約数和(自身を含む): 123272160

約数和(自身を除く): 42047439

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 1627, 1849, 4881, 5547, 14643, 16641, 43929, 49923, 69961, 209883, 629649, 1888947, 3008323, 9024969, 27074907, 81224721]

約数ペア:

[(1, 81224721), (3, 27074907), (9, 9024969), (27, 3008323), (43, 1888947), (129, 629649), (387, 209883), (1161, 69961), (1627, 49923), (1849, 43929), (4881, 16641), (5547, 14643)]