19516820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{23801}}^1$

素因数の和:23851

約数の個数: 24

約数和(自身を含む): 41986728

約数和(自身を除く): 22469908

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 23801, 47602, 95204, 119005, 238010, 476020, 975841, 1951682, 3903364, 4879205, 9758410, 19516820]

約数ペア:

[(1, 19516820), (2, 9758410), (4, 4879205), (5, 3903364), (10, 1951682), (20, 975841), (41, 476020), (82, 238010), (164, 119005), (205, 95204), (410, 47602), (820, 23801)]