51718513

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 74649600

約数和(自身を除く): 22931087

約数列:

[1, 7, 11, 19, 23, 29, 53, 77, 133, 161, 203, 209, 253, 319, 371, 437, 551, 583, 667, 1007, 1219, 1463, 1537, 1771, 2233, 3059, 3857, 4081, 4669, 4807, 6061, 7049, 7337, 8533, 10759, 11077, 12673, 13409, 16907, 23161, 29203, 33649, 35351, 42427, 51359, 77539, 88711, 93863, 118349, 139403, 162127, 204421, 247457, 254771, 321233, 388861, 671669, 975821, 1783397, 2248631, 2722027, 4701683, 7388359, 51718513]

約数ペア:

[(1, 51718513), (7, 7388359), (11, 4701683), (19, 2722027), (23, 2248631), (29, 1783397), (53, 975821), (77, 671669), (133, 388861), (161, 321233), (203, 254771), (209, 247457), (253, 204421), (319, 162127), (371, 139403), (437, 118349), (551, 93863), (583, 88711), (667, 77539), (1007, 51359), (1219, 42427), (1463, 35351), (1537, 33649), (1771, 29203), (2233, 23161), (3059, 16907), (3857, 13409), (4081, 12673), (4669, 11077), (4807, 10759), (6061, 8533), (7049, 7337)]