215838081

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{420737}}^1$

素因数の和:420765

約数の個数: 16

約数和(自身を含む): 336590400

約数和(自身を除く): 120752319

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 420737, 1262211, 3786633, 7994003, 11359899, 23982009, 71946027, 215838081]

約数ペア:

[(1, 215838081), (3, 71946027), (9, 23982009), (19, 11359899), (27, 7994003), (57, 3786633), (171, 1262211), (513, 420737)]