198445247

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 274563072

約数和(自身を除く): 76117825

約数列:

[1, 7, 11, 13, 49, 77, 91, 127, 143, 223, 539, 637, 889, 1001, 1397, 1561, 1651, 2453, 2899, 6223, 7007, 9779, 10927, 11557, 17171, 18161, 20293, 28321, 31889, 68453, 80899, 120197, 127127, 142051, 198247, 223223, 311531, 368173, 889889, 1387729, 1562561, 2180717, 2577211, 4049903, 15265019, 18040477, 28349321, 198445247]

約数ペア:

[(1, 198445247), (7, 28349321), (11, 18040477), (13, 15265019), (49, 4049903), (77, 2577211), (91, 2180717), (127, 1562561), (143, 1387729), (223, 889889), (539, 368173), (637, 311531), (889, 223223), (1001, 198247), (1397, 142051), (1561, 127127), (1651, 120197), (2453, 80899), (2899, 68453), (6223, 31889), (7007, 28321), (9779, 20293), (10927, 18161), (11557, 17171)]