81251721

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{177019}}^1$

素因数の和:177045

約数の個数: 16

約数和(自身を含む): 127454400

約数和(自身を除く): 46202679

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 177019, 531057, 1593171, 3009323, 4779513, 9027969, 27083907, 81251721]

約数ペア:

[(1, 81251721), (3, 27083907), (9, 9027969), (17, 4779513), (27, 3009323), (51, 1593171), (153, 531057), (459, 177019)]