19744672

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:365

約数の個数: 48

約数和(自身を含む): 41065920

約数和(自身を除く): 21321248

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 139, 184, 193, 278, 368, 386, 556, 736, 772, 1112, 1544, 2224, 3088, 3197, 4439, 4448, 6176, 6394, 8878, 12788, 17756, 25576, 26827, 35512, 51152, 53654, 71024, 102304, 107308, 142048, 214616, 429232, 617021, 858464, 1234042, 2468084, 4936168, 9872336, 19744672]

約数ペア:

[(1, 19744672), (2, 9872336), (4, 4936168), (8, 2468084), (16, 1234042), (23, 858464), (32, 617021), (46, 429232), (92, 214616), (139, 142048), (184, 107308), (193, 102304), (278, 71024), (368, 53654), (386, 51152), (556, 35512), (736, 26827), (772, 25576), (1112, 17756), (1544, 12788), (2224, 8878), (3088, 6394), (3197, 6176), (4439, 4448)]