18668489

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{2243}}^1$

素因数の和:2320

約数の個数: 16

約数和(自身を含む): 22619520

約数和(自身を除く): 3951031

約数列:

[1, 7, 29, 41, 203, 287, 1189, 2243, 8323, 15701, 65047, 91963, 455329, 643741, 2666927, 18668489]

約数ペア:

[(1, 18668489), (7, 2666927), (29, 643741), (41, 455329), (203, 91963), (287, 65047), (1189, 15701), (2243, 8323)]