18539994

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{280909}}^1$

素因数の和:280925

約数の個数: 16

約数和(自身を含む): 40451040

約数和(自身を除く): 21911046

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 280909, 561818, 842727, 1685454, 3089999, 6179998, 9269997, 18539994]

約数ペア:

[(1, 18539994), (2, 9269997), (3, 6179998), (6, 3089999), (11, 1685454), (22, 842727), (33, 561818), (66, 280909)]