18944548

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1279}}^1$

素因数の和:1336

約数の個数: 36

約数和(自身を含む): 39639040

約数和(自身を除く): 20694492

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 529, 644, 1058, 1279, 2116, 2558, 3703, 5116, 7406, 8953, 14812, 17906, 29417, 35812, 58834, 117668, 205919, 411838, 676591, 823676, 1353182, 2706364, 4736137, 9472274, 18944548]

約数ペア:

[(1, 18944548), (2, 9472274), (4, 4736137), (7, 2706364), (14, 1353182), (23, 823676), (28, 676591), (46, 411838), (92, 205919), (161, 117668), (322, 58834), (529, 35812), (644, 29417), (1058, 17906), (1279, 14812), (2116, 8953), (2558, 7406), (3703, 5116)]