21565824

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:208

約数の個数: 128

約数和(自身を含む): 66977280

約数和(自身を除く): 45411456

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 71, 84, 96, 112, 113, 128, 142, 168, 192, 213, 224, 226, 284, 336, 339, 384, 426, 448, 452, 497, 568, 672, 678, 791, 852, 896, 904, 994, 1136, 1344, 1356, 1491, 1582, 1704, 1808, 1988, 2272, 2373, 2688, 2712, 2982, 3164, 3408, 3616, 3976, 4544, 4746, 5424, 5964, 6328, 6816, 7232, 7952, 8023, 9088, 9492, 10848, 11928, 12656, 13632, 14464, 15904, 16046, 18984, 21696, 23856, 24069, 25312, 27264, 31808, 32092, 37968, 43392, 47712, 48138, 50624, 56161, 63616, 64184, 75936, 95424, 96276, 101248, 112322, 128368, 151872, 168483, 190848, 192552, 224644, 256736, 303744, 336966, 385104, 449288, 513472, 673932, 770208, 898576, 1026944, 1347864, 1540416, 1797152, 2695728, 3080832, 3594304, 5391456, 7188608, 10782912, 21565824]

約数ペア:

[(1, 21565824), (2, 10782912), (3, 7188608), (4, 5391456), (6, 3594304), (7, 3080832), (8, 2695728), (12, 1797152), (14, 1540416), (16, 1347864), (21, 1026944), (24, 898576), (28, 770208), (32, 673932), (42, 513472), (48, 449288), (56, 385104), (64, 336966), (71, 303744), (84, 256736), (96, 224644), (112, 192552), (113, 190848), (128, 168483), (142, 151872), (168, 128368), (192, 112322), (213, 101248), (224, 96276), (226, 95424), (284, 75936), (336, 64184), (339, 63616), (384, 56161), (426, 50624), (448, 48138), (452, 47712), (497, 43392), (568, 37968), (672, 32092), (678, 31808), (791, 27264), (852, 25312), (896, 24069), (904, 23856), (994, 21696), (1136, 18984), (1344, 16046), (1356, 15904), (1491, 14464), (1582, 13632), (1704, 12656), (1808, 11928), (1988, 10848), (2272, 9492), (2373, 9088), (2688, 8023), (2712, 7952), (2982, 7232), (3164, 6816), (3408, 6328), (3616, 5964), (3976, 5424), (4544, 4746)]