21787205319

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{173}}^1\times {\mathrm{34381}}^1$

素因数の和:34608

約数の個数: 48

約数和(自身を含む): 35464070304

約数和(自身を除く): 13676864985

約数列:

[1, 3, 9, 11, 33, 37, 99, 111, 173, 333, 407, 519, 1221, 1557, 1903, 3663, 5709, 6401, 17127, 19203, 34381, 57609, 70411, 103143, 211233, 309429, 378191, 633699, 1134573, 1272097, 3403719, 3816291, 5947913, 11448873, 13993067, 17843739, 41979201, 53531217, 65427043, 125937603, 196281129, 220072781, 588843387, 660218343, 1980655029, 2420800591, 7262401773, 21787205319]

約数ペア:

[(1, 21787205319), (3, 7262401773), (9, 2420800591), (11, 1980655029), (33, 660218343), (37, 588843387), (99, 220072781), (111, 196281129), (173, 125937603), (333, 65427043), (407, 53531217), (519, 41979201), (1221, 17843739), (1557, 13993067), (1903, 11448873), (3663, 5947913), (5709, 3816291), (6401, 3403719), (17127, 1272097), (19203, 1134573), (34381, 633699), (57609, 378191), (70411, 309429), (103143, 211233)]