21116928

素因数分解:

$2^{11}\times 3^1\times 7^1\times {\mathrm{491}}^1$

素因数の和:523

約数の個数: 96

約数和(自身を含む): 64471680

約数和(自身を除く): 43354752

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 84, 96, 112, 128, 168, 192, 224, 256, 336, 384, 448, 491, 512, 672, 768, 896, 982, 1024, 1344, 1473, 1536, 1792, 1964, 2048, 2688, 2946, 3072, 3437, 3584, 3928, 5376, 5892, 6144, 6874, 7168, 7856, 10311, 10752, 11784, 13748, 14336, 15712, 20622, 21504, 23568, 27496, 31424, 41244, 43008, 47136, 54992, 62848, 82488, 94272, 109984, 125696, 164976, 188544, 219968, 251392, 329952, 377088, 439936, 502784, 659904, 754176, 879872, 1005568, 1319808, 1508352, 1759744, 2639616, 3016704, 3519488, 5279232, 7038976, 10558464, 21116928]

約数ペア:

[(1, 21116928), (2, 10558464), (3, 7038976), (4, 5279232), (6, 3519488), (7, 3016704), (8, 2639616), (12, 1759744), (14, 1508352), (16, 1319808), (21, 1005568), (24, 879872), (28, 754176), (32, 659904), (42, 502784), (48, 439936), (56, 377088), (64, 329952), (84, 251392), (96, 219968), (112, 188544), (128, 164976), (168, 125696), (192, 109984), (224, 94272), (256, 82488), (336, 62848), (384, 54992), (448, 47136), (491, 43008), (512, 41244), (672, 31424), (768, 27496), (896, 23568), (982, 21504), (1024, 20622), (1344, 15712), (1473, 14336), (1536, 13748), (1792, 11784), (1964, 10752), (2048, 10311), (2688, 7856), (2946, 7168), (3072, 6874), (3437, 6144), (3584, 5892), (3928, 5376)]