19868889

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{9421}}^1$

素因数の和:9480

約数の個数: 16

約数和(自身を含む): 28642880

約数和(自身を除く): 8773991

約数列:

[1, 3, 19, 37, 57, 111, 703, 2109, 9421, 28263, 178999, 348577, 536997, 1045731, 6622963, 19868889]

約数ペア:

[(1, 19868889), (3, 6622963), (19, 1045731), (37, 536997), (57, 348577), (111, 178999), (703, 28263), (2109, 9421)]