18832781

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{359}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 21772800

約数和(自身を除く): 2940019

約数列:

[1, 11, 19, 209, 251, 359, 2761, 3949, 4769, 6821, 52459, 75031, 90109, 991199, 1712071, 18832781]

約数ペア:

[(1, 18832781), (11, 1712071), (19, 991199), (209, 90109), (251, 75031), (359, 52459), (2761, 6821), (3949, 4769)]