18929589

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{20963}}^1$

素因数の和:21016

約数の個数: 16

約数和(自身を含む): 29517312

約数和(自身を除く): 10587723

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 20963, 62889, 146741, 440223, 901409, 2704227, 6309863, 18929589]

約数ペア:

[(1, 18929589), (3, 6309863), (7, 2704227), (21, 901409), (43, 440223), (129, 146741), (301, 62889), (903, 20963)]