1990911

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 2903040

約数和(自身を除く): 912129

約数列:

[1, 3, 13, 39, 71, 213, 719, 923, 2157, 2769, 9347, 28041, 51049, 153147, 663637, 1990911]

約数ペア:

[(1, 1990911), (3, 663637), (13, 153147), (39, 51049), (71, 28041), (213, 9347), (719, 2769), (923, 2157)]