18685721

素因数分解:

${\mathrm{19}}^2\times {\mathrm{191}}^1\times {\mathrm{271}}^1$

素因数の和:500

約数の個数: 12

約数和(自身を含む): 19897344

約数和(自身を除く): 1211623

約数列:

[1, 19, 191, 271, 361, 3629, 5149, 51761, 68951, 97831, 983459, 18685721]

約数ペア:

[(1, 18685721), (19, 983459), (191, 97831), (271, 68951), (361, 51761), (3629, 5149)]