19609919

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1\times {\mathrm{521}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 23719680

約数和(自身を除く): 4109761

約数列:

[1, 7, 19, 133, 283, 521, 1981, 3647, 5377, 9899, 37639, 69293, 147443, 1032101, 2801417, 19609919]

約数ペア:

[(1, 19609919), (7, 2801417), (19, 1032101), (133, 147443), (283, 69293), (521, 37639), (1981, 9899), (3647, 5377)]