19428903

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{18451}}^1$

素因数の和:18476

約数の個数: 20

約数和(自身を含む): 31257688

約数和(自身を除く): 11828785

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 18451, 55353, 166059, 239863, 498177, 719589, 1494531, 2158767, 6476301, 19428903]

約数ペア:

[(1, 19428903), (3, 6476301), (9, 2158767), (13, 1494531), (27, 719589), (39, 498177), (81, 239863), (117, 166059), (351, 55353), (1053, 18451)]