19983381

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{199}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 31104000

約数和(自身を除く): 11120619

約数列:

[1, 3, 11, 17, 33, 51, 179, 187, 199, 537, 561, 597, 1969, 2189, 3043, 3383, 5907, 6567, 9129, 10149, 33473, 35621, 37213, 100419, 106863, 111639, 391831, 605557, 1175493, 1816671, 6661127, 19983381]

約数ペア:

[(1, 19983381), (3, 6661127), (11, 1816671), (17, 1175493), (33, 605557), (51, 391831), (179, 111639), (187, 106863), (199, 100419), (537, 37213), (561, 35621), (597, 33473), (1969, 10149), (2189, 9129), (3043, 6567), (3383, 5907)]