19921491

素因数分解:

$3^3\times {\mathrm{191}}^1\times {\mathrm{3863}}^1$

素因数の和:4063

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 9754029

約数列:

[1, 3, 9, 27, 191, 573, 1719, 3863, 5157, 11589, 34767, 104301, 737833, 2213499, 6640497, 19921491]

約数ペア:

[(1, 19921491), (3, 6640497), (9, 2213499), (27, 737833), (191, 104301), (573, 34767), (1719, 11589), (3863, 5157)]