19866756

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:170

約数の個数: 144

約数和(自身を含む): 61133184

約数和(自身を除く): 41266428

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 23, 26, 28, 39, 42, 46, 49, 52, 69, 78, 84, 91, 92, 98, 113, 138, 147, 156, 161, 182, 196, 226, 273, 276, 294, 299, 322, 339, 364, 452, 483, 546, 588, 598, 637, 644, 678, 791, 897, 966, 1092, 1127, 1196, 1274, 1356, 1469, 1582, 1794, 1911, 1932, 2093, 2254, 2373, 2548, 2599, 2938, 3164, 3381, 3588, 3822, 4186, 4407, 4508, 4746, 5198, 5537, 5876, 6279, 6762, 7644, 7797, 8372, 8814, 9492, 10283, 10396, 11074, 12558, 13524, 14651, 15594, 16611, 17628, 18193, 20566, 22148, 25116, 29302, 30849, 31188, 33222, 33787, 36386, 41132, 43953, 54579, 58604, 61698, 66444, 67574, 71981, 72772, 87906, 101361, 109158, 123396, 127351, 135148, 143962, 175812, 202722, 215943, 218316, 236509, 254702, 287924, 382053, 405444, 431886, 473018, 509404, 709527, 764106, 863772, 946036, 1419054, 1528212, 1655563, 2838108, 3311126, 4966689, 6622252, 9933378, 19866756]

約数ペア:

[(1, 19866756), (2, 9933378), (3, 6622252), (4, 4966689), (6, 3311126), (7, 2838108), (12, 1655563), (13, 1528212), (14, 1419054), (21, 946036), (23, 863772), (26, 764106), (28, 709527), (39, 509404), (42, 473018), (46, 431886), (49, 405444), (52, 382053), (69, 287924), (78, 254702), (84, 236509), (91, 218316), (92, 215943), (98, 202722), (113, 175812), (138, 143962), (147, 135148), (156, 127351), (161, 123396), (182, 109158), (196, 101361), (226, 87906), (273, 72772), (276, 71981), (294, 67574), (299, 66444), (322, 61698), (339, 58604), (364, 54579), (452, 43953), (483, 41132), (546, 36386), (588, 33787), (598, 33222), (637, 31188), (644, 30849), (678, 29302), (791, 25116), (897, 22148), (966, 20566), (1092, 18193), (1127, 17628), (1196, 16611), (1274, 15594), (1356, 14651), (1469, 13524), (1582, 12558), (1794, 11074), (1911, 10396), (1932, 10283), (2093, 9492), (2254, 8814), (2373, 8372), (2548, 7797), (2599, 7644), (2938, 6762), (3164, 6279), (3381, 5876), (3588, 5537), (3822, 5198), (4186, 4746), (4407, 4508)]