51918561

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19961}}^1$

素因数の和:20001

約数の個数: 18

約数和(自身を含む): 79668342

約数和(自身を除く): 27749781

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 19961, 59883, 179649, 339337, 1018011, 3054033, 5768729, 17306187, 51918561]

約数ペア:

[(1, 51918561), (3, 17306187), (9, 5768729), (17, 3054033), (51, 1018011), (153, 339337), (289, 179649), (867, 59883), (2601, 19961)]