18789066729

素因数分解:

$3^2\times {\mathrm{53}}^2\times {\mathrm{743209}}^1$

素因数の和:743321

約数の個数: 18

約数和(自身を含む): 27661532990

約数和(自身を除く): 8872466261

約数列:

[1, 3, 9, 53, 159, 477, 2809, 8427, 25281, 743209, 2229627, 6688881, 39390077, 118170231, 354510693, 2087674081, 6263022243, 18789066729]

約数ペア:

[(1, 18789066729), (3, 6263022243), (9, 2087674081), (53, 354510693), (159, 118170231), (477, 39390077), (2809, 6688881), (8427, 2229627), (25281, 743209)]