21391104

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 68285952

約数和(自身を除く): 46894848

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 56, 64, 69, 84, 92, 96, 112, 128, 138, 161, 168, 173, 184, 192, 224, 256, 276, 322, 336, 346, 368, 384, 448, 483, 519, 552, 644, 672, 692, 736, 768, 896, 966, 1038, 1104, 1211, 1288, 1344, 1384, 1472, 1792, 1932, 2076, 2208, 2422, 2576, 2688, 2768, 2944, 3633, 3864, 3979, 4152, 4416, 4844, 5152, 5376, 5536, 5888, 7266, 7728, 7958, 8304, 8832, 9688, 10304, 11072, 11937, 14532, 15456, 15916, 16608, 17664, 19376, 20608, 22144, 23874, 27853, 29064, 30912, 31832, 33216, 38752, 41216, 44288, 47748, 55706, 58128, 61824, 63664, 66432, 77504, 83559, 95496, 111412, 116256, 123648, 127328, 132864, 155008, 167118, 190992, 222824, 232512, 254656, 310016, 334236, 381984, 445648, 465024, 509312, 668472, 763968, 891296, 930048, 1018624, 1336944, 1527936, 1782592, 2673888, 3055872, 3565184, 5347776, 7130368, 10695552, 21391104]

約数ペア:

[(1, 21391104), (2, 10695552), (3, 7130368), (4, 5347776), (6, 3565184), (7, 3055872), (8, 2673888), (12, 1782592), (14, 1527936), (16, 1336944), (21, 1018624), (23, 930048), (24, 891296), (28, 763968), (32, 668472), (42, 509312), (46, 465024), (48, 445648), (56, 381984), (64, 334236), (69, 310016), (84, 254656), (92, 232512), (96, 222824), (112, 190992), (128, 167118), (138, 155008), (161, 132864), (168, 127328), (173, 123648), (184, 116256), (192, 111412), (224, 95496), (256, 83559), (276, 77504), (322, 66432), (336, 63664), (346, 61824), (368, 58128), (384, 55706), (448, 47748), (483, 44288), (519, 41216), (552, 38752), (644, 33216), (672, 31832), (692, 30912), (736, 29064), (768, 27853), (896, 23874), (966, 22144), (1038, 20608), (1104, 19376), (1211, 17664), (1288, 16608), (1344, 15916), (1384, 15456), (1472, 14532), (1792, 11937), (1932, 11072), (2076, 10304), (2208, 9688), (2422, 8832), (2576, 8304), (2688, 7958), (2768, 7728), (2944, 7266), (3633, 5888), (3864, 5536), (3979, 5376), (4152, 5152), (4416, 4844)]