16991091

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{11171}}^1$

素因数の和:11203

約数の個数: 18

約数和(自身を含む): 26578188

約数和(自身を除く): 9587097

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 11171, 33513, 100539, 145223, 435669, 1307007, 1887899, 5663697, 16991091]

約数ペア:

[(1, 16991091), (3, 5663697), (9, 1887899), (13, 1307007), (39, 435669), (117, 145223), (169, 100539), (507, 33513), (1521, 11171)]