20779924

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{2447}}^1$

素因数の和:2655

約数の個数: 24

約数和(自身を含む): 39892608

約数和(自身を除く): 19112684

約数列:

[1, 2, 4, 11, 22, 44, 193, 386, 772, 2123, 2447, 4246, 4894, 8492, 9788, 26917, 53834, 107668, 472271, 944542, 1889084, 5194981, 10389962, 20779924]

約数ペア:

[(1, 20779924), (2, 10389962), (4, 5194981), (11, 1889084), (22, 944542), (44, 472271), (193, 107668), (386, 53834), (772, 26917), (2123, 9788), (2447, 8492), (4246, 4894)]