18240937

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{641}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 21571200

約数和(自身を除く): 3330263

約数列:

[1, 11, 13, 143, 199, 641, 2189, 2587, 7051, 8333, 28457, 91663, 127559, 1403149, 1658267, 18240937]

約数ペア:

[(1, 18240937), (11, 1658267), (13, 1403149), (143, 127559), (199, 91663), (641, 28457), (2189, 8333), (2587, 7051)]