21678001408

素因数分解:

$2^8\times 7^2\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{521}}^1$

素因数の和:689

約数の個数: 216

約数和(自身を含む): 52546040064

約数和(自身を除く): 30868038656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 64, 98, 107, 112, 124, 128, 196, 214, 217, 224, 248, 256, 392, 428, 434, 448, 496, 521, 749, 784, 856, 868, 896, 992, 1042, 1498, 1519, 1568, 1712, 1736, 1792, 1984, 2084, 2996, 3038, 3136, 3317, 3424, 3472, 3647, 3968, 4168, 5243, 5992, 6076, 6272, 6634, 6848, 6944, 7294, 7936, 8336, 10486, 11984, 12152, 12544, 13268, 13696, 13888, 14588, 16151, 16672, 20972, 23219, 23968, 24304, 25529, 26536, 27392, 27776, 29176, 32302, 33344, 41944, 46438, 47936, 48608, 51058, 53072, 55552, 55747, 58352, 64604, 66688, 83888, 92876, 95872, 97216, 102116, 106144, 111494, 113057, 116704, 129208, 133376, 162533, 167776, 185752, 191744, 194432, 204232, 212288, 222988, 226114, 233408, 258416, 325066, 335552, 371504, 388864, 390229, 408464, 424576, 445976, 452228, 466816, 516832, 650132, 671104, 743008, 780458, 791399, 816928, 849152, 891952, 904456, 933632, 1033664, 1300264, 1342208, 1486016, 1560916, 1582798, 1633856, 1728157, 1783904, 1808912, 2067328, 2600528, 2731603, 2972032, 3121832, 3165596, 3267712, 3456314, 3567808, 3617824, 4134656, 5201056, 5463206, 5944064, 6243664, 6331192, 6535424, 6912628, 7135616, 7235648, 10402112, 10926412, 12097099, 12487328, 12662384, 13825256, 14271232, 14471296, 20804224, 21852824, 24194198, 24974656, 25324768, 27650512, 28942592, 41608448, 43705648, 48388396, 49949312, 50649536, 55301024, 84679693, 87411296, 96776792, 99898624, 101299072, 110602048, 169359386, 174822592, 193553584, 202598144, 221204096, 338718772, 349645184, 387107168, 442408192, 677437544, 699290368, 774214336, 1354875088, 1548428672, 2709750176, 3096857344, 5419500352, 10839000704, 21678001408]

約数ペア:

[(1, 21678001408), (2, 10839000704), (4, 5419500352), (7, 3096857344), (8, 2709750176), (14, 1548428672), (16, 1354875088), (28, 774214336), (31, 699290368), (32, 677437544), (49, 442408192), (56, 387107168), (62, 349645184), (64, 338718772), (98, 221204096), (107, 202598144), (112, 193553584), (124, 174822592), (128, 169359386), (196, 110602048), (214, 101299072), (217, 99898624), (224, 96776792), (248, 87411296), (256, 84679693), (392, 55301024), (428, 50649536), (434, 49949312), (448, 48388396), (496, 43705648), (521, 41608448), (749, 28942592), (784, 27650512), (856, 25324768), (868, 24974656), (896, 24194198), (992, 21852824), (1042, 20804224), (1498, 14471296), (1519, 14271232), (1568, 13825256), (1712, 12662384), (1736, 12487328), (1792, 12097099), (1984, 10926412), (2084, 10402112), (2996, 7235648), (3038, 7135616), (3136, 6912628), (3317, 6535424), (3424, 6331192), (3472, 6243664), (3647, 5944064), (3968, 5463206), (4168, 5201056), (5243, 4134656), (5992, 3617824), (6076, 3567808), (6272, 3456314), (6634, 3267712), (6848, 3165596), (6944, 3121832), (7294, 2972032), (7936, 2731603), (8336, 2600528), (10486, 2067328), (11984, 1808912), (12152, 1783904), (12544, 1728157), (13268, 1633856), (13696, 1582798), (13888, 1560916), (14588, 1486016), (16151, 1342208), (16672, 1300264), (20972, 1033664), (23219, 933632), (23968, 904456), (24304, 891952), (25529, 849152), (26536, 816928), (27392, 791399), (27776, 780458), (29176, 743008), (32302, 671104), (33344, 650132), (41944, 516832), (46438, 466816), (47936, 452228), (48608, 445976), (51058, 424576), (53072, 408464), (55552, 390229), (55747, 388864), (58352, 371504), (64604, 335552), (66688, 325066), (83888, 258416), (92876, 233408), (95872, 226114), (97216, 222988), (102116, 212288), (106144, 204232), (111494, 194432), (113057, 191744), (116704, 185752), (129208, 167776), (133376, 162533)]