19668519

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7309}}^1$

素因数の和:7351

約数の個数: 24

約数和(自身を含む): 31930080

約数和(自身を除く): 12261561

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 7309, 21927, 65781, 95017, 168107, 285051, 504321, 855153, 1512963, 2185391, 6556173, 19668519]

約数ペア:

[(1, 19668519), (3, 6556173), (9, 2185391), (13, 1512963), (23, 855153), (39, 504321), (69, 285051), (117, 168107), (207, 95017), (299, 65781), (897, 21927), (2691, 7309)]