18668391

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{7867}}^1$

素因数の和:7990

約数の個数: 16

約数和(自身を含む): 28702464

約数和(自身を除く): 10034073

約数列:

[1, 3, 7, 21, 113, 339, 791, 2373, 7867, 23601, 55069, 165207, 888971, 2666913, 6222797, 18668391]

約数ペア:

[(1, 18668391), (3, 6222797), (7, 2666913), (21, 888971), (113, 165207), (339, 55069), (791, 23601), (2373, 7867)]