19390881

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{1543}}^1$

素因数の和:1676

約数の個数: 16

約数和(自身を含む): 26680320

約数和(自身を除く): 7289439

約数列:

[1, 3, 59, 71, 177, 213, 1543, 4189, 4629, 12567, 91037, 109553, 273111, 328659, 6463627, 19390881]

約数ペア:

[(1, 19390881), (3, 6463627), (59, 328659), (71, 273111), (177, 109553), (213, 91037), (1543, 12567), (4189, 4629)]