19663761

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{13627}}^1$

素因数の和:13680

約数の個数: 16

約数和(自身を含む): 29000384

約数和(自身を除く): 9336623

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 13627, 40881, 177151, 504199, 531453, 1512597, 6554587, 19663761]

約数ペア:

[(1, 19663761), (3, 6554587), (13, 1512597), (37, 531453), (39, 504199), (111, 177151), (481, 40881), (1443, 13627)]