21801879

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{24469}}^1$

素因数の和:24492

約数の個数: 20

約数和(自身を含む): 35530440

約数和(自身を除く): 13728561

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 24469, 73407, 220221, 269159, 660663, 807477, 1981989, 2422431, 7267293, 21801879]

約数ペア:

[(1, 21801879), (3, 7267293), (9, 2422431), (11, 1981989), (27, 807477), (33, 660663), (81, 269159), (99, 220221), (297, 73407), (891, 24469)]