21154863

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1\times {\mathrm{1117}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 28978560

約数和(自身を除く): 7823697

約数列:

[1, 3, 59, 107, 177, 321, 1117, 3351, 6313, 18939, 65903, 119519, 197709, 358557, 7051621, 21154863]

約数ペア:

[(1, 21154863), (3, 7051621), (59, 358557), (107, 197709), (177, 119519), (321, 65903), (1117, 18939), (3351, 6313)]