19458387

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1087}}^1$

素因数の和:1129

約数の個数: 40

約数和(自身を含む): 33175296

約数和(自身を除く): 13716909

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1087, 1377, 1989, 3261, 5967, 9783, 14131, 17901, 18479, 29349, 42393, 55437, 88047, 127179, 166311, 240227, 381537, 498933, 720681, 1144611, 1496799, 2162043, 6486129, 19458387]

約数ペア:

[(1, 19458387), (3, 6486129), (9, 2162043), (13, 1496799), (17, 1144611), (27, 720681), (39, 498933), (51, 381537), (81, 240227), (117, 166311), (153, 127179), (221, 88047), (351, 55437), (459, 42393), (663, 29349), (1053, 18479), (1087, 17901), (1377, 14131), (1989, 9783), (3261, 5967)]