71813889

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1709}}^1$

素因数の和:1774

約数の個数: 48

約数和(自身を含む): 128044800

約数和(自身を除く): 56230911

約数列:

[1, 3, 7, 9, 21, 23, 29, 63, 69, 87, 161, 203, 207, 261, 483, 609, 667, 1449, 1709, 1827, 2001, 4669, 5127, 6003, 11963, 14007, 15381, 35889, 39307, 42021, 49561, 107667, 117921, 148683, 275149, 346927, 353763, 446049, 825447, 1040781, 1139903, 2476341, 3122343, 3419709, 7979321, 10259127, 23937963, 71813889]

約数ペア:

[(1, 71813889), (3, 23937963), (7, 10259127), (9, 7979321), (21, 3419709), (23, 3122343), (29, 2476341), (63, 1139903), (69, 1040781), (87, 825447), (161, 446049), (203, 353763), (207, 346927), (261, 275149), (483, 148683), (609, 117921), (667, 107667), (1449, 49561), (1709, 42021), (1827, 39307), (2001, 35889), (4669, 15381), (5127, 14007), (6003, 11963)]