19968465

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{121021}}^1$

素因数の和:121040

約数の個数: 16

約数和(自身を含む): 34854336

約数和(自身を除く): 14885871

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 121021, 363063, 605105, 1331231, 1815315, 3993693, 6656155, 19968465]

約数ペア:

[(1, 19968465), (3, 6656155), (5, 3993693), (11, 1815315), (15, 1331231), (33, 605105), (55, 363063), (165, 121021)]