18513957

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{80147}}^1$

素因数の和:80168

約数の個数: 16

約数和(自身を含む): 30776832

約数和(自身を除く): 12262875

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 80147, 240441, 561029, 881617, 1683087, 2644851, 6171319, 18513957]

約数ペア:

[(1, 18513957), (3, 6171319), (7, 2644851), (11, 1683087), (21, 881617), (33, 561029), (77, 240441), (231, 80147)]