19491597

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{727}}^1$

素因数の和:1070

約数の個数: 20

約数和(自身を含む): 29245216

約数和(自身を除く): 9753619

約数列:

[1, 3, 9, 27, 81, 331, 727, 993, 2181, 2979, 6543, 8937, 19629, 26811, 58887, 240637, 721911, 2165733, 6497199, 19491597]

約数ペア:

[(1, 19491597), (3, 6497199), (9, 2165733), (27, 721911), (81, 240637), (331, 58887), (727, 26811), (993, 19629), (2181, 8937), (2979, 6543)]