21457215584

素因数分解:

$2^5\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4177}}^1$

素因数の和:4301

約数の個数: 192

約数和(自身を含む): 54580055040

約数和(自身を除く): 33122839456

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 32, 34, 38, 56, 68, 71, 76, 112, 119, 133, 136, 142, 152, 224, 238, 266, 272, 284, 304, 323, 476, 497, 532, 544, 568, 608, 646, 952, 994, 1064, 1136, 1207, 1292, 1349, 1904, 1988, 2128, 2261, 2272, 2414, 2584, 2698, 3808, 3976, 4177, 4256, 4522, 4828, 5168, 5396, 7952, 8354, 8449, 9044, 9443, 9656, 10336, 10792, 15904, 16708, 16898, 18088, 18886, 19312, 21584, 22933, 29239, 33416, 33796, 36176, 37772, 38624, 43168, 45866, 58478, 66832, 67592, 71009, 72352, 75544, 79363, 91732, 116956, 133664, 135184, 142018, 151088, 158726, 160531, 183464, 233912, 270368, 284036, 296567, 302176, 317452, 321062, 366928, 467824, 497063, 555541, 568072, 593134, 634904, 642124, 733856, 935648, 994126, 1111082, 1136144, 1186268, 1269808, 1284248, 1349171, 1988252, 2075969, 2222164, 2272288, 2372536, 2539616, 2568496, 2698342, 3976504, 4151938, 4444328, 4745072, 5041639, 5136992, 5396684, 5634773, 7953008, 8303876, 8888656, 9444197, 9490144, 10083278, 10793368, 11269546, 15906016, 16607752, 17777312, 18888394, 20166556, 21586736, 22539092, 33215504, 35291473, 37776788, 39443411, 40333112, 43173472, 45078184, 66431008, 70582946, 75553576, 78886822, 80666224, 90156368, 95791141, 141165892, 151107152, 157773644, 161332448, 180312736, 191582282, 282331784, 302214304, 315547288, 383164564, 564663568, 631094576, 670537987, 766329128, 1129327136, 1262189152, 1341075974, 1532658256, 2682151948, 3065316512, 5364303896, 10728607792, 21457215584]

約数ペア:

[(1, 21457215584), (2, 10728607792), (4, 5364303896), (7, 3065316512), (8, 2682151948), (14, 1532658256), (16, 1341075974), (17, 1262189152), (19, 1129327136), (28, 766329128), (32, 670537987), (34, 631094576), (38, 564663568), (56, 383164564), (68, 315547288), (71, 302214304), (76, 282331784), (112, 191582282), (119, 180312736), (133, 161332448), (136, 157773644), (142, 151107152), (152, 141165892), (224, 95791141), (238, 90156368), (266, 80666224), (272, 78886822), (284, 75553576), (304, 70582946), (323, 66431008), (476, 45078184), (497, 43173472), (532, 40333112), (544, 39443411), (568, 37776788), (608, 35291473), (646, 33215504), (952, 22539092), (994, 21586736), (1064, 20166556), (1136, 18888394), (1207, 17777312), (1292, 16607752), (1349, 15906016), (1904, 11269546), (1988, 10793368), (2128, 10083278), (2261, 9490144), (2272, 9444197), (2414, 8888656), (2584, 8303876), (2698, 7953008), (3808, 5634773), (3976, 5396684), (4177, 5136992), (4256, 5041639), (4522, 4745072), (4828, 4444328), (5168, 4151938), (5396, 3976504), (7952, 2698342), (8354, 2568496), (8449, 2539616), (9044, 2372536), (9443, 2272288), (9656, 2222164), (10336, 2075969), (10792, 1988252), (15904, 1349171), (16708, 1284248), (16898, 1269808), (18088, 1186268), (18886, 1136144), (19312, 1111082), (21584, 994126), (22933, 935648), (29239, 733856), (33416, 642124), (33796, 634904), (36176, 593134), (37772, 568072), (38624, 555541), (43168, 497063), (45866, 467824), (58478, 366928), (66832, 321062), (67592, 317452), (71009, 302176), (72352, 296567), (75544, 284036), (79363, 270368), (91732, 233912), (116956, 183464), (133664, 160531), (135184, 158726), (142018, 151088)]