1990953

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{3881}}^1$

素因数の和:3909

約数の個数: 16

約数和(自身を含む): 3105600

約数和(自身を除く): 1114647

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 3881, 11643, 34929, 73739, 104787, 221217, 663651, 1990953]

約数ペア:

[(1, 1990953), (3, 663651), (9, 221217), (19, 104787), (27, 73739), (57, 34929), (171, 11643), (513, 3881)]