19487763

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{42457}}^1$

素因数の和:42483

約数の個数: 16

約数和(自身を含む): 30569760

約数和(自身を除く): 11081997

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 42457, 127371, 382113, 721769, 1146339, 2165307, 6495921, 19487763]

約数ペア:

[(1, 19487763), (3, 6495921), (9, 2165307), (17, 1146339), (27, 721769), (51, 382113), (153, 127371), (459, 42457)]