20729856

素因数分解:

$2^{12}\times 3^1\times 7^1\times {\mathrm{241}}^1$

素因数の和:275

約数の個数: 104

約数和(自身を含む): 63431104

約数和(自身を除く): 42701248

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, 241, 256, 336, 384, 448, 482, 512, 672, 723, 768, 896, 964, 1024, 1344, 1446, 1536, 1687, 1792, 1928, 2048, 2688, 2892, 3072, 3374, 3584, 3856, 4096, 5061, 5376, 5784, 6144, 6748, 7168, 7712, 10122, 10752, 11568, 12288, 13496, 14336, 15424, 20244, 21504, 23136, 26992, 28672, 30848, 40488, 43008, 46272, 53984, 61696, 80976, 86016, 92544, 107968, 123392, 161952, 185088, 215936, 246784, 323904, 370176, 431872, 493568, 647808, 740352, 863744, 987136, 1295616, 1480704, 1727488, 2591232, 2961408, 3454976, 5182464, 6909952, 10364928, 20729856]

約数ペア:

[(1, 20729856), (2, 10364928), (3, 6909952), (4, 5182464), (6, 3454976), (7, 2961408), (8, 2591232), (12, 1727488), (14, 1480704), (16, 1295616), (21, 987136), (24, 863744), (28, 740352), (32, 647808), (42, 493568), (48, 431872), (56, 370176), (64, 323904), (84, 246784), (96, 215936), (112, 185088), (128, 161952), (168, 123392), (192, 107968), (224, 92544), (241, 86016), (256, 80976), (336, 61696), (384, 53984), (448, 46272), (482, 43008), (512, 40488), (672, 30848), (723, 28672), (768, 26992), (896, 23136), (964, 21504), (1024, 20244), (1344, 15424), (1446, 14336), (1536, 13496), (1687, 12288), (1792, 11568), (1928, 10752), (2048, 10122), (2688, 7712), (2892, 7168), (3072, 6748), (3374, 6144), (3584, 5784), (3856, 5376), (4096, 5061)]