19992564

素因数分解:

$2^2\times 3^2\times {\mathrm{555349}}^1$

素因数の和:555359

約数の個数: 18

約数和(自身を含む): 50536850

約数和(自身を除く): 30544286

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 555349, 1110698, 1666047, 2221396, 3332094, 4998141, 6664188, 9996282, 19992564]

約数ペア:

[(1, 19992564), (2, 9996282), (3, 6664188), (4, 4998141), (6, 3332094), (9, 2221396), (12, 1666047), (18, 1110698), (36, 555349)]