19581989

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5077}}^1$

素因数の和:5132

約数の個数: 16

約数和(自身を含む): 24374400

約数和(自身を除く): 4792411

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5077, 35539, 96463, 147233, 675241, 1030631, 2797427, 19581989]

約数ペア:

[(1, 19581989), (7, 2797427), (19, 1030631), (29, 675241), (133, 147233), (203, 96463), (551, 35539), (3857, 5077)]