19805357

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8147}}^1$

素因数の和:8188

約数の個数: 16

約数和(自身を含む): 24639552

約数和(自身を除く): 4834195

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8147, 89617, 105911, 138499, 1165021, 1523489, 1800487, 19805357]

約数ペア:

[(1, 19805357), (11, 1800487), (13, 1523489), (17, 1165021), (143, 138499), (187, 105911), (221, 89617), (2431, 8147)]