18801999

素因数分解:

$3^2\times {\mathrm{211}}^1\times {\mathrm{9901}}^1$

素因数の和:10118

約数の個数: 12

約数和(自身を含む): 27289912

約数和(自身を除く): 8487913

約数列:

[1, 3, 9, 211, 633, 1899, 9901, 29703, 89109, 2089111, 6267333, 18801999]

約数ペア:

[(1, 18801999), (3, 6267333), (9, 2089111), (211, 89109), (633, 29703), (1899, 9901)]