20718186786

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{487}}^1$

素因数の和:805

約数の個数: 192

約数和(自身を含む): 52619673600

約数和(自身を除く): 31901486814

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 31, 33, 58, 62, 66, 87, 93, 99, 174, 186, 198, 239, 261, 279, 319, 341, 478, 487, 522, 558, 638, 682, 717, 899, 957, 974, 1023, 1434, 1461, 1798, 1914, 2046, 2151, 2629, 2697, 2871, 2922, 3069, 4302, 4383, 5258, 5357, 5394, 5742, 6138, 6931, 7409, 7887, 8091, 8766, 9889, 10714, 13862, 14123, 14818, 15097, 15774, 16071, 16182, 19778, 20793, 22227, 23661, 28246, 29667, 30194, 32142, 41586, 42369, 44454, 45291, 47322, 48213, 59334, 62379, 66681, 76241, 81499, 84738, 89001, 90582, 96426, 116393, 124758, 127107, 133362, 135873, 152482, 155353, 162998, 166067, 178002, 214861, 228723, 232786, 244497, 254214, 271746, 310706, 332134, 349179, 429722, 437813, 457446, 466059, 488994, 498201, 644583, 686169, 698358, 733491, 875626, 932118, 996402, 1047537, 1280323, 1289166, 1313439, 1372338, 1398177, 1466982, 1494603, 1933749, 2095074, 2363471, 2560646, 2626878, 2796354, 2989206, 3375397, 3608183, 3840969, 3867498, 3940317, 4726942, 4815943, 6750794, 7090413, 7216366, 7681938, 7880634, 9631886, 10126191, 10824549, 11522907, 14180826, 14447829, 20252382, 21271239, 21649098, 23045814, 28895658, 30378573, 32473647, 37129367, 39690013, 42542478, 43343487, 60757146, 64947294, 74258734, 79380026, 86686974, 104637307, 111388101, 119070039, 209274614, 222776202, 238140078, 313911921, 334164303, 357210117, 627823842, 668328606, 714420234, 941735763, 1151010377, 1883471526, 2302020754, 3453031131, 6906062262, 10359093393, 20718186786]

約数ペア:

[(1, 20718186786), (2, 10359093393), (3, 6906062262), (6, 3453031131), (9, 2302020754), (11, 1883471526), (18, 1151010377), (22, 941735763), (29, 714420234), (31, 668328606), (33, 627823842), (58, 357210117), (62, 334164303), (66, 313911921), (87, 238140078), (93, 222776202), (99, 209274614), (174, 119070039), (186, 111388101), (198, 104637307), (239, 86686974), (261, 79380026), (279, 74258734), (319, 64947294), (341, 60757146), (478, 43343487), (487, 42542478), (522, 39690013), (558, 37129367), (638, 32473647), (682, 30378573), (717, 28895658), (899, 23045814), (957, 21649098), (974, 21271239), (1023, 20252382), (1434, 14447829), (1461, 14180826), (1798, 11522907), (1914, 10824549), (2046, 10126191), (2151, 9631886), (2629, 7880634), (2697, 7681938), (2871, 7216366), (2922, 7090413), (3069, 6750794), (4302, 4815943), (4383, 4726942), (5258, 3940317), (5357, 3867498), (5394, 3840969), (5742, 3608183), (6138, 3375397), (6931, 2989206), (7409, 2796354), (7887, 2626878), (8091, 2560646), (8766, 2363471), (9889, 2095074), (10714, 1933749), (13862, 1494603), (14123, 1466982), (14818, 1398177), (15097, 1372338), (15774, 1313439), (16071, 1289166), (16182, 1280323), (19778, 1047537), (20793, 996402), (22227, 932118), (23661, 875626), (28246, 733491), (29667, 698358), (30194, 686169), (32142, 644583), (41586, 498201), (42369, 488994), (44454, 466059), (45291, 457446), (47322, 437813), (48213, 429722), (59334, 349179), (62379, 332134), (66681, 310706), (76241, 271746), (81499, 254214), (84738, 244497), (89001, 232786), (90582, 228723), (96426, 214861), (116393, 178002), (124758, 166067), (127107, 162998), (133362, 155353), (135873, 152482)]