19993581

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1082

約数の個数: 32

約数和(自身を含む): 32123520

約数和(自身を除く): 12129939

約数列:

[1, 3, 9, 17, 27, 43, 51, 129, 153, 387, 459, 731, 1013, 1161, 2193, 3039, 6579, 9117, 17221, 19737, 27351, 43559, 51663, 130677, 154989, 392031, 464967, 740503, 1176093, 2221509, 6664527, 19993581]

約数ペア:

[(1, 19993581), (3, 6664527), (9, 2221509), (17, 1176093), (27, 740503), (43, 464967), (51, 392031), (129, 154989), (153, 130677), (387, 51663), (459, 43559), (731, 27351), (1013, 19737), (1161, 17221), (2193, 9117), (3039, 6579)]