68818379

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{389}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 79872000

約数和(自身を除く): 11053621

約数列:

[1, 7, 127, 199, 389, 889, 1393, 2723, 25273, 49403, 77411, 176911, 345821, 541877, 9831197, 68818379]

約数ペア:

[(1, 68818379), (7, 9831197), (127, 541877), (199, 345821), (389, 176911), (889, 77411), (1393, 49403), (2723, 25273)]