21284352

素因数分解:

$2^9\times 3^2\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:204

約数の個数: 120

約数和(自身を含む): 63835200

約数和(自身を除く): 42550848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 64, 72, 93, 96, 124, 128, 144, 149, 186, 192, 248, 256, 279, 288, 298, 372, 384, 447, 496, 512, 558, 576, 596, 744, 768, 894, 992, 1116, 1152, 1192, 1341, 1488, 1536, 1788, 1984, 2232, 2304, 2384, 2682, 2976, 3576, 3968, 4464, 4608, 4619, 4768, 5364, 5952, 7152, 7936, 8928, 9238, 9536, 10728, 11904, 13857, 14304, 15872, 17856, 18476, 19072, 21456, 23808, 27714, 28608, 35712, 36952, 38144, 41571, 42912, 47616, 55428, 57216, 71424, 73904, 76288, 83142, 85824, 110856, 114432, 142848, 147808, 166284, 171648, 221712, 228864, 295616, 332568, 343296, 443424, 591232, 665136, 686592, 886848, 1182464, 1330272, 1773696, 2364928, 2660544, 3547392, 5321088, 7094784, 10642176, 21284352]

約数ペア:

[(1, 21284352), (2, 10642176), (3, 7094784), (4, 5321088), (6, 3547392), (8, 2660544), (9, 2364928), (12, 1773696), (16, 1330272), (18, 1182464), (24, 886848), (31, 686592), (32, 665136), (36, 591232), (48, 443424), (62, 343296), (64, 332568), (72, 295616), (93, 228864), (96, 221712), (124, 171648), (128, 166284), (144, 147808), (149, 142848), (186, 114432), (192, 110856), (248, 85824), (256, 83142), (279, 76288), (288, 73904), (298, 71424), (372, 57216), (384, 55428), (447, 47616), (496, 42912), (512, 41571), (558, 38144), (576, 36952), (596, 35712), (744, 28608), (768, 27714), (894, 23808), (992, 21456), (1116, 19072), (1152, 18476), (1192, 17856), (1341, 15872), (1488, 14304), (1536, 13857), (1788, 11904), (1984, 10728), (2232, 9536), (2304, 9238), (2384, 8928), (2682, 7936), (2976, 7152), (3576, 5952), (3968, 5364), (4464, 4768), (4608, 4619)]