21778173

素因数分解:

$3^3\times {\mathrm{17}}^2\times {\mathrm{2791}}^1$

素因数の和:2834

約数の個数: 24

約数和(自身を含む): 34285760

約数和(自身を除く): 12507587

約数列:

[1, 3, 9, 17, 27, 51, 153, 289, 459, 867, 2601, 2791, 7803, 8373, 25119, 47447, 75357, 142341, 427023, 806599, 1281069, 2419797, 7259391, 21778173]

約数ペア:

[(1, 21778173), (3, 7259391), (9, 2419797), (17, 1281069), (27, 806599), (51, 427023), (153, 142341), (289, 75357), (459, 47447), (867, 25119), (2601, 8373), (2791, 7803)]