21768381

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1949}}^1$

素因数の和:2045

約数の個数: 24

約数和(自身を含む): 33766200

約数和(自身を除く): 11997819

約数列:

[1, 3, 9, 17, 51, 73, 153, 219, 657, 1241, 1949, 3723, 5847, 11169, 17541, 33133, 99399, 142277, 298197, 426831, 1280493, 2418709, 7256127, 21768381]

約数ペア:

[(1, 21768381), (3, 7256127), (9, 2418709), (17, 1280493), (51, 426831), (73, 298197), (153, 142277), (219, 99399), (657, 33133), (1241, 17541), (1949, 11169), (3723, 5847)]