19691559

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{42901}}^1$

素因数の和:42927

約数の個数: 16

約数和(自身を含む): 30889440

約数和(自身を除く): 11197881

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 42901, 128703, 386109, 729317, 1158327, 2187951, 6563853, 19691559]

約数ペア:

[(1, 19691559), (3, 6563853), (9, 2187951), (17, 1158327), (27, 729317), (51, 386109), (153, 128703), (459, 42901)]