1997889

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:520

約数の個数: 16

約数和(自身を含む): 2808960

約数和(自身を除く): 811071

約数列:

[1, 3, 37, 41, 111, 123, 439, 1317, 1517, 4551, 16243, 17999, 48729, 53997, 665963, 1997889]

約数ペア:

[(1, 1997889), (3, 665963), (37, 53997), (41, 48729), (111, 17999), (123, 16243), (439, 4551), (1317, 1517)]