20199082185

素因数分解:

$3^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{977927}}^1$

素因数の和:977964

約数の個数: 48

約数和(自身を含む): 38444305536

約数和(自身を除く): 18245223351

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 243, 255, 405, 459, 765, 1215, 1377, 2295, 4131, 6885, 20655, 977927, 2933781, 4889635, 8801343, 14668905, 16624759, 26404029, 44006715, 49874277, 79212087, 83123795, 132020145, 149622831, 237636261, 249371385, 396060435, 448868493, 748114155, 1188181305, 1346605479, 2244342465, 4039816437, 6733027395, 20199082185]

約数ペア:

[(1, 20199082185), (3, 6733027395), (5, 4039816437), (9, 2244342465), (15, 1346605479), (17, 1188181305), (27, 748114155), (45, 448868493), (51, 396060435), (81, 249371385), (85, 237636261), (135, 149622831), (153, 132020145), (243, 83123795), (255, 79212087), (405, 49874277), (459, 44006715), (765, 26404029), (1215, 16624759), (1377, 14668905), (2295, 8801343), (4131, 4889635), (6885, 2933781), (20655, 977927)]