19420563

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{997}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 26698496

約数和(自身を除く): 7277933

約数列:

[1, 3, 43, 129, 151, 453, 997, 2991, 6493, 19479, 42871, 128613, 150547, 451641, 6473521, 19420563]

約数ペア:

[(1, 19420563), (3, 6473521), (43, 451641), (129, 150547), (151, 128613), (453, 42871), (997, 19479), (2991, 6493)]