18693939

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1\times {\mathrm{881}}^1$

素因数の和:1538

約数の個数: 16

約数和(自身を含む): 27264384

約数和(自身を除く): 8570445

約数列:

[1, 3, 11, 33, 643, 881, 1929, 2643, 7073, 9691, 21219, 29073, 566483, 1699449, 6231313, 18693939]

約数ペア:

[(1, 18693939), (3, 6231313), (11, 1699449), (33, 566483), (643, 29073), (881, 21219), (1929, 9691), (2643, 7073)]