21703707

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5701}}^1$

素因数の和:5760

約数の個数: 20

約数和(自身を含む): 33117216

約数和(自身を除く): 11413509

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5701, 17103, 51309, 153927, 267947, 461781, 803841, 2411523, 7234569, 21703707]

約数ペア:

[(1, 21703707), (3, 7234569), (9, 2411523), (27, 803841), (47, 461781), (81, 267947), (141, 153927), (423, 51309), (1269, 17103), (3807, 5701)]