16788321

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 28259712

約数和(自身を除く): 11471391

約数列:

[1, 3, 9, 11, 23, 33, 69, 73, 99, 101, 207, 219, 253, 303, 657, 759, 803, 909, 1111, 1679, 2277, 2323, 2409, 3333, 5037, 6969, 7227, 7373, 9999, 15111, 18469, 20907, 22119, 25553, 55407, 66357, 76659, 81103, 166221, 169579, 229977, 243309, 508737, 729927, 1526211, 1865369, 5596107, 16788321]

約数ペア:

[(1, 16788321), (3, 5596107), (9, 1865369), (11, 1526211), (23, 729927), (33, 508737), (69, 243309), (73, 229977), (99, 169579), (101, 166221), (207, 81103), (219, 76659), (253, 66357), (303, 55407), (657, 25553), (759, 22119), (803, 20907), (909, 18469), (1111, 15111), (1679, 9999), (2277, 7373), (2323, 7227), (2409, 6969), (3333, 5037)]