21308672

素因数分解:

$2^8\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:104

約数の個数: 144

約数和(自身を含む): 56512512

約数和(自身を除く): 35203840

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 32, 44, 46, 47, 56, 64, 77, 88, 92, 94, 112, 128, 154, 161, 176, 184, 188, 224, 253, 256, 308, 322, 329, 352, 368, 376, 448, 506, 517, 616, 644, 658, 704, 736, 752, 896, 1012, 1034, 1081, 1232, 1288, 1316, 1408, 1472, 1504, 1771, 1792, 2024, 2068, 2162, 2464, 2576, 2632, 2816, 2944, 3008, 3542, 3619, 4048, 4136, 4324, 4928, 5152, 5264, 5888, 6016, 7084, 7238, 7567, 8096, 8272, 8648, 9856, 10304, 10528, 11891, 12032, 14168, 14476, 15134, 16192, 16544, 17296, 19712, 20608, 21056, 23782, 28336, 28952, 30268, 32384, 33088, 34592, 41216, 42112, 47564, 56672, 57904, 60536, 64768, 66176, 69184, 83237, 84224, 95128, 113344, 115808, 121072, 132352, 138368, 166474, 190256, 226688, 231616, 242144, 276736, 332948, 380512, 453376, 463232, 484288, 665896, 761024, 926464, 968576, 1331792, 1522048, 1937152, 2663584, 3044096, 5327168, 10654336, 21308672]

約数ペア:

[(1, 21308672), (2, 10654336), (4, 5327168), (7, 3044096), (8, 2663584), (11, 1937152), (14, 1522048), (16, 1331792), (22, 968576), (23, 926464), (28, 761024), (32, 665896), (44, 484288), (46, 463232), (47, 453376), (56, 380512), (64, 332948), (77, 276736), (88, 242144), (92, 231616), (94, 226688), (112, 190256), (128, 166474), (154, 138368), (161, 132352), (176, 121072), (184, 115808), (188, 113344), (224, 95128), (253, 84224), (256, 83237), (308, 69184), (322, 66176), (329, 64768), (352, 60536), (368, 57904), (376, 56672), (448, 47564), (506, 42112), (517, 41216), (616, 34592), (644, 33088), (658, 32384), (704, 30268), (736, 28952), (752, 28336), (896, 23782), (1012, 21056), (1034, 20608), (1081, 19712), (1232, 17296), (1288, 16544), (1316, 16192), (1408, 15134), (1472, 14476), (1504, 14168), (1771, 12032), (1792, 11891), (2024, 10528), (2068, 10304), (2162, 9856), (2464, 8648), (2576, 8272), (2632, 8096), (2816, 7567), (2944, 7238), (3008, 7084), (3542, 6016), (3619, 5888), (4048, 5264), (4136, 5152), (4324, 4928)]