17790017

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{2351}}^1$

素因数の和:2428

約数の個数: 16

約数和(自身を含む): 21676032

約数和(自身を除く): 3886015

約数列:

[1, 7, 23, 47, 161, 329, 1081, 2351, 7567, 16457, 54073, 110497, 378511, 773479, 2541431, 17790017]

約数ペア:

[(1, 17790017), (7, 2541431), (23, 773479), (47, 378511), (161, 110497), (329, 54073), (1081, 16457), (2351, 7567)]