19505889

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{569}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 30499560

約数和(自身を除く): 10993671

約数列:

[1, 3, 9, 13, 39, 117, 293, 569, 879, 1707, 2637, 3809, 5121, 7397, 11427, 22191, 34281, 66573, 166717, 500151, 1500453, 2167321, 6501963, 19505889]

約数ペア:

[(1, 19505889), (3, 6501963), (9, 2167321), (13, 1500453), (39, 500151), (117, 166717), (293, 66573), (569, 34281), (879, 22191), (1707, 11427), (2637, 7397), (3809, 5121)]