19993788

素因数分解:

$2^2\times 3^2\times {\mathrm{555383}}^1$

素因数の和:555393

約数の個数: 18

約数和(自身を含む): 50539944

約数和(自身を除く): 30546156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 555383, 1110766, 1666149, 2221532, 3332298, 4998447, 6664596, 9996894, 19993788]

約数ペア:

[(1, 19993788), (2, 9996894), (3, 6664596), (4, 4998447), (6, 3332298), (9, 2221532), (12, 1666149), (18, 1110766), (36, 555383)]