20814752

素因数分解:

$2^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2161}}^1$

素因数の和:2221

約数の個数: 48

約数和(自身を含む): 47944512

約数和(自身を除く): 27129760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 86, 112, 172, 224, 301, 344, 602, 688, 1204, 1376, 2161, 2408, 4322, 4816, 8644, 9632, 15127, 17288, 30254, 34576, 60508, 69152, 92923, 121016, 185846, 242032, 371692, 484064, 650461, 743384, 1300922, 1486768, 2601844, 2973536, 5203688, 10407376, 20814752]

約数ペア:

[(1, 20814752), (2, 10407376), (4, 5203688), (7, 2973536), (8, 2601844), (14, 1486768), (16, 1300922), (28, 743384), (32, 650461), (43, 484064), (56, 371692), (86, 242032), (112, 185846), (172, 121016), (224, 92923), (301, 69152), (344, 60508), (602, 34576), (688, 30254), (1204, 17288), (1376, 15127), (2161, 9632), (2408, 8644), (4322, 4816)]