19681178

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{6829}}^1$

素因数の和:6973

約数の個数: 16

約数和(自身を含む): 32456160

約数和(自身を除く): 12774982

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 6829, 13658, 75119, 150238, 894599, 1789198, 9840589, 19681178]

約数ペア:

[(1, 19681178), (2, 9840589), (11, 1789198), (22, 894599), (131, 150238), (262, 75119), (1441, 13658), (2882, 6829)]