20217921471

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{463}}^1\times {\mathrm{2239}}^1$

素因数の和:2916

約数の個数: 48

約数和(自身を含む): 32103751680

約数和(自身を除く): 11885830209

約数列:

[1, 3, 9, 11, 33, 99, 197, 463, 591, 1389, 1773, 2167, 2239, 4167, 5093, 6501, 6717, 15279, 19503, 20151, 24629, 45837, 73887, 91211, 221661, 273633, 441083, 820899, 1003321, 1036657, 1323249, 3009963, 3109971, 3969747, 4851913, 9029889, 9329913, 11403227, 14555739, 34209681, 43667217, 102629043, 204221429, 612664287, 1837992861, 2246435719, 6739307157, 20217921471]

約数ペア:

[(1, 20217921471), (3, 6739307157), (9, 2246435719), (11, 1837992861), (33, 612664287), (99, 204221429), (197, 102629043), (463, 43667217), (591, 34209681), (1389, 14555739), (1773, 11403227), (2167, 9329913), (2239, 9029889), (4167, 4851913), (5093, 3969747), (6501, 3109971), (6717, 3009963), (15279, 1323249), (19503, 1036657), (20151, 1003321), (24629, 820899), (45837, 441083), (73887, 273633), (91211, 221661)]