19627191

素因数分解:

$3^4\times {\mathrm{293}}^1\times {\mathrm{827}}^1$

素因数の和:1132

約数の個数: 20

約数和(自身を含む): 29455272

約数和(自身を除く): 9828081

約数列:

[1, 3, 9, 27, 81, 293, 827, 879, 2481, 2637, 7443, 7911, 22329, 23733, 66987, 242311, 726933, 2180799, 6542397, 19627191]

約数ペア:

[(1, 19627191), (3, 6542397), (9, 2180799), (27, 726933), (81, 242311), (293, 66987), (827, 23733), (879, 22329), (2481, 7911), (2637, 7443)]