18930821

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10949}}^1$

素因数の和:10988

約数の個数: 16

約数和(自身を含む): 24528000

約数和(自身を除く): 5597179

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 10949, 76643, 142337, 208031, 996359, 1456217, 2704403, 18930821]

約数ペア:

[(1, 18930821), (7, 2704403), (13, 1456217), (19, 996359), (91, 208031), (133, 142337), (247, 76643), (1729, 10949)]