21045379072

素因数分解:

$2^{16}\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:241

約数の個数: 136

約数和(自身を含む): 43995816144

約数和(自身を除く): 22950437072

約数列:

[1, 2, 4, 8, 16, 32, 53, 64, 73, 83, 106, 128, 146, 166, 212, 256, 292, 332, 424, 512, 584, 664, 848, 1024, 1168, 1328, 1696, 2048, 2336, 2656, 3392, 3869, 4096, 4399, 4672, 5312, 6059, 6784, 7738, 8192, 8798, 9344, 10624, 12118, 13568, 15476, 16384, 17596, 18688, 21248, 24236, 27136, 30952, 32768, 35192, 37376, 42496, 48472, 54272, 61904, 65536, 70384, 74752, 84992, 96944, 108544, 123808, 140768, 149504, 169984, 193888, 217088, 247616, 281536, 299008, 321127, 339968, 387776, 434176, 495232, 563072, 598016, 642254, 679936, 775552, 868352, 990464, 1126144, 1196032, 1284508, 1359872, 1551104, 1736704, 1980928, 2252288, 2392064, 2569016, 2719744, 3102208, 3473408, 3961856, 4504576, 4784128, 5138032, 5439488, 6204416, 7923712, 9009152, 10276064, 12408832, 15847424, 18018304, 20552128, 24817664, 31694848, 36036608, 41104256, 49635328, 63389696, 72073216, 82208512, 99270656, 126779392, 144146432, 164417024, 198541312, 253558784, 288292864, 328834048, 397082624, 657668096, 1315336192, 2630672384, 5261344768, 10522689536, 21045379072]

約数ペア:

[(1, 21045379072), (2, 10522689536), (4, 5261344768), (8, 2630672384), (16, 1315336192), (32, 657668096), (53, 397082624), (64, 328834048), (73, 288292864), (83, 253558784), (106, 198541312), (128, 164417024), (146, 144146432), (166, 126779392), (212, 99270656), (256, 82208512), (292, 72073216), (332, 63389696), (424, 49635328), (512, 41104256), (584, 36036608), (664, 31694848), (848, 24817664), (1024, 20552128), (1168, 18018304), (1328, 15847424), (1696, 12408832), (2048, 10276064), (2336, 9009152), (2656, 7923712), (3392, 6204416), (3869, 5439488), (4096, 5138032), (4399, 4784128), (4672, 4504576), (5312, 3961856), (6059, 3473408), (6784, 3102208), (7738, 2719744), (8192, 2569016), (8798, 2392064), (9344, 2252288), (10624, 1980928), (12118, 1736704), (13568, 1551104), (15476, 1359872), (16384, 1284508), (17596, 1196032), (18688, 1126144), (21248, 990464), (24236, 868352), (27136, 775552), (30952, 679936), (32768, 642254), (35192, 598016), (37376, 563072), (42496, 495232), (48472, 434176), (54272, 387776), (61904, 339968), (65536, 321127), (70384, 299008), (74752, 281536), (84992, 247616), (96944, 217088), (108544, 193888), (123808, 169984), (140768, 149504)]