21000901229

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:479

約数の個数: 96

約数和(自身を含む): 28815114240

約数和(自身を除く): 7814213011

約数列:

[1, 7, 11, 19, 49, 67, 77, 127, 133, 209, 241, 469, 539, 737, 889, 931, 1273, 1397, 1463, 1687, 2413, 2651, 3283, 4579, 5159, 6223, 8509, 8911, 9779, 10241, 11809, 14003, 16147, 16891, 18557, 26543, 30607, 32053, 36113, 50369, 59563, 62377, 68453, 93599, 98021, 113029, 118237, 129899, 161671, 177617, 185801, 214249, 224371, 306793, 336677, 352583, 416941, 581533, 655193, 686147, 791203, 1131697, 1243319, 1300607, 1499743, 1778381, 2050669, 2147551, 2356739, 2468081, 3374723, 4070731, 4586351, 6396863, 7921879, 8703233, 12448667, 14354683, 15032857, 16497173, 22557359, 23623061, 28495117, 38962711, 44778041, 87140669, 100482781, 157901513, 165361427, 272738977, 313446287, 428589821, 1105310591, 1909172839, 3000128747, 21000901229]

約数ペア:

[(1, 21000901229), (7, 3000128747), (11, 1909172839), (19, 1105310591), (49, 428589821), (67, 313446287), (77, 272738977), (127, 165361427), (133, 157901513), (209, 100482781), (241, 87140669), (469, 44778041), (539, 38962711), (737, 28495117), (889, 23623061), (931, 22557359), (1273, 16497173), (1397, 15032857), (1463, 14354683), (1687, 12448667), (2413, 8703233), (2651, 7921879), (3283, 6396863), (4579, 4586351), (5159, 4070731), (6223, 3374723), (8509, 2468081), (8911, 2356739), (9779, 2147551), (10241, 2050669), (11809, 1778381), (14003, 1499743), (16147, 1300607), (16891, 1243319), (18557, 1131697), (26543, 791203), (30607, 686147), (32053, 655193), (36113, 581533), (50369, 416941), (59563, 352583), (62377, 336677), (68453, 306793), (93599, 224371), (98021, 214249), (113029, 185801), (118237, 177617), (129899, 161671)]