19628554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20749}}^1$

素因数の和:20805

約数の個数: 16

約数和(自身を含む): 32868000

約数和(自身を除く): 13239446

約数列:

[1, 2, 11, 22, 43, 86, 473, 946, 20749, 41498, 228239, 456478, 892207, 1784414, 9814277, 19628554]

約数ペア:

[(1, 19628554), (2, 9814277), (11, 1784414), (22, 892207), (43, 456478), (86, 228239), (473, 41498), (946, 20749)]