20491968

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:294

約数の個数: 112

約数和(自身を含む): 63073280

約数和(自身を除く): 42581312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 79, 84, 96, 112, 158, 168, 192, 193, 224, 237, 316, 336, 386, 448, 474, 553, 579, 632, 672, 772, 948, 1106, 1158, 1264, 1344, 1351, 1544, 1659, 1896, 2212, 2316, 2528, 2702, 3088, 3318, 3792, 4053, 4424, 4632, 5056, 5404, 6176, 6636, 7584, 8106, 8848, 9264, 10808, 12352, 13272, 15168, 15247, 16212, 17696, 18528, 21616, 26544, 30494, 32424, 35392, 37056, 43232, 45741, 53088, 60988, 64848, 86464, 91482, 106176, 106729, 121976, 129696, 182964, 213458, 243952, 259392, 320187, 365928, 426916, 487904, 640374, 731856, 853832, 975808, 1280748, 1463712, 1707664, 2561496, 2927424, 3415328, 5122992, 6830656, 10245984, 20491968]

約数ペア:

[(1, 20491968), (2, 10245984), (3, 6830656), (4, 5122992), (6, 3415328), (7, 2927424), (8, 2561496), (12, 1707664), (14, 1463712), (16, 1280748), (21, 975808), (24, 853832), (28, 731856), (32, 640374), (42, 487904), (48, 426916), (56, 365928), (64, 320187), (79, 259392), (84, 243952), (96, 213458), (112, 182964), (158, 129696), (168, 121976), (192, 106729), (193, 106176), (224, 91482), (237, 86464), (316, 64848), (336, 60988), (386, 53088), (448, 45741), (474, 43232), (553, 37056), (579, 35392), (632, 32424), (672, 30494), (772, 26544), (948, 21616), (1106, 18528), (1158, 17696), (1264, 16212), (1344, 15247), (1351, 15168), (1544, 13272), (1659, 12352), (1896, 10808), (2212, 9264), (2316, 8848), (2528, 8106), (2702, 7584), (3088, 6636), (3318, 6176), (3792, 5404), (4053, 5056), (4424, 4632)]