18426919

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{2111}}^1$

素因数の和:2190

約数の個数: 16

約数和(自身を含む): 22302720

約数和(自身を除く): 3875801

約数列:

[1, 7, 29, 43, 203, 301, 1247, 2111, 8729, 14777, 61219, 90773, 428533, 635411, 2632417, 18426919]

約数ペア:

[(1, 18426919), (7, 2632417), (29, 635411), (43, 428533), (203, 90773), (301, 61219), (1247, 14777), (2111, 8729)]