20811835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 28449792

約数和(自身を除く): 7637957

約数列:

[1, 5, 11, 47, 55, 83, 97, 235, 415, 485, 517, 913, 1067, 2585, 3901, 4559, 4565, 5335, 8051, 19505, 22795, 40255, 42911, 50149, 88561, 214555, 250745, 378397, 442805, 1891985, 4162367, 20811835]

約数ペア:

[(1, 20811835), (5, 4162367), (11, 1891985), (47, 442805), (55, 378397), (83, 250745), (97, 214555), (235, 88561), (415, 50149), (485, 42911), (517, 40255), (913, 22795), (1067, 19505), (2585, 8051), (3901, 5335), (4559, 4565)]