20494768

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9631}}^1$

素因数の和:9665

約数の個数: 40

約数和(自身を含む): 47774720

約数和(自身を除く): 27279952

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9631, 19262, 38524, 67417, 77048, 134834, 154096, 182989, 269668, 365978, 539336, 731956, 1078672, 1280923, 1463912, 2561846, 2927824, 5123692, 10247384, 20494768]

約数ペア:

[(1, 20494768), (2, 10247384), (4, 5123692), (7, 2927824), (8, 2561846), (14, 1463912), (16, 1280923), (19, 1078672), (28, 731956), (38, 539336), (56, 365978), (76, 269668), (112, 182989), (133, 154096), (152, 134834), (266, 77048), (304, 67417), (532, 38524), (1064, 19262), (2128, 9631)]