64540917

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 110702592

約数和(自身を除く): 46161675

約数列:

[1, 3, 7, 9, 21, 47, 63, 71, 141, 213, 307, 329, 423, 497, 639, 921, 987, 1491, 2149, 2763, 2961, 3337, 4473, 6447, 10011, 14429, 19341, 21797, 23359, 30033, 43287, 65391, 70077, 101003, 129861, 152579, 196173, 210231, 303009, 457737, 909027, 1024459, 1373211, 3073377, 7171213, 9220131, 21513639, 64540917]

約数ペア:

[(1, 64540917), (3, 21513639), (7, 9220131), (9, 7171213), (21, 3073377), (47, 1373211), (63, 1024459), (71, 909027), (141, 457737), (213, 303009), (307, 210231), (329, 196173), (423, 152579), (497, 129861), (639, 101003), (921, 70077), (987, 65391), (1491, 43287), (2149, 30033), (2763, 23359), (2961, 21797), (3337, 19341), (4473, 14429), (6447, 10011)]