21443072

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 80

約数和(自身を含む): 50806272

約数和(自身を除く): 29363200

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 193, 217, 224, 248, 256, 386, 434, 448, 496, 512, 772, 868, 896, 992, 1351, 1544, 1736, 1792, 1984, 2702, 3088, 3472, 3584, 3968, 5404, 5983, 6176, 6944, 7936, 10808, 11966, 12352, 13888, 15872, 21616, 23932, 24704, 27776, 41881, 43232, 47864, 49408, 55552, 83762, 86464, 95728, 98816, 111104, 167524, 172928, 191456, 335048, 345856, 382912, 670096, 691712, 765824, 1340192, 1531648, 2680384, 3063296, 5360768, 10721536, 21443072]

約数ペア:

[(1, 21443072), (2, 10721536), (4, 5360768), (7, 3063296), (8, 2680384), (14, 1531648), (16, 1340192), (28, 765824), (31, 691712), (32, 670096), (56, 382912), (62, 345856), (64, 335048), (112, 191456), (124, 172928), (128, 167524), (193, 111104), (217, 98816), (224, 95728), (248, 86464), (256, 83762), (386, 55552), (434, 49408), (448, 47864), (496, 43232), (512, 41881), (772, 27776), (868, 24704), (896, 23932), (992, 21616), (1351, 15872), (1544, 13888), (1736, 12352), (1792, 11966), (1984, 10808), (2702, 7936), (3088, 6944), (3472, 6176), (3584, 5983), (3968, 5404)]