208897191

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{407207}}^1$

素因数の和:407235

約数の個数: 16

約数和(自身を含む): 325766400

約数和(自身を除く): 116869209

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 407207, 1221621, 3664863, 7736933, 10994589, 23210799, 69632397, 208897191]

約数ペア:

[(1, 208897191), (3, 69632397), (9, 23210799), (19, 10994589), (27, 7736933), (57, 3664863), (171, 1221621), (513, 407207)]