20639762

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72167}}^1$

素因数の和:72193

約数の個数: 16

約数和(自身を含む): 36372672

約数和(自身を除く): 15732910

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72167, 144334, 793837, 938171, 1587674, 1876342, 10319881, 20639762]

約数ペア:

[(1, 20639762), (2, 10319881), (11, 1876342), (13, 1587674), (22, 938171), (26, 793837), (143, 144334), (286, 72167)]