18109021

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2411}}^1$

素因数の和:2484

約数の個数: 16

約数和(自身を含む): 21997440

約数和(自身を除く): 3888419

約数列:

[1, 7, 29, 37, 203, 259, 1073, 2411, 7511, 16877, 69919, 89207, 489433, 624449, 2587003, 18109021]

約数ペア:

[(1, 18109021), (7, 2587003), (29, 624449), (37, 489433), (203, 89207), (259, 69919), (1073, 16877), (2411, 7511)]