21284391

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{5717}}^1$

素因数の和:5810

約数の個数: 16

約数和(自身を含む): 30465504

約数和(自身を除く): 9181113

約数列:

[1, 3, 17, 51, 73, 219, 1241, 3723, 5717, 17151, 97189, 291567, 417341, 1252023, 7094797, 21284391]

約数ペア:

[(1, 21284391), (3, 7094797), (17, 1252023), (51, 417341), (73, 291567), (219, 97189), (1241, 17151), (3723, 5717)]