20686878

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{28031}}^1$

素因数の和:28080

約数の個数: 24

約数和(自身を含む): 45916416

約数和(自身を除く): 25229538

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 123, 246, 369, 738, 28031, 56062, 84093, 168186, 252279, 504558, 1149271, 2298542, 3447813, 6895626, 10343439, 20686878]

約数ペア:

[(1, 20686878), (2, 10343439), (3, 6895626), (6, 3447813), (9, 2298542), (18, 1149271), (41, 504558), (82, 252279), (123, 168186), (246, 84093), (369, 56062), (738, 28031)]