18883503

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{5507}}^1$

素因数の和:5643

約数の個数: 16

約数和(自身を含む): 28200960

約数和(自身を除く): 9317457

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 5507, 16521, 49563, 148689, 699389, 2098167, 6294501, 18883503]

約数ペア:

[(1, 18883503), (3, 6294501), (9, 2098167), (27, 699389), (127, 148689), (381, 49563), (1143, 16521), (3429, 5507)]