17947899

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5153}}^1$

素因数の和:5208

約数の個数: 20

約数和(自身を含む): 27439896

約数和(自身を除く): 9491997

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5153, 15459, 46377, 139131, 221579, 417393, 664737, 1994211, 5982633, 17947899]

約数ペア:

[(1, 17947899), (3, 5982633), (9, 1994211), (27, 664737), (43, 417393), (81, 221579), (129, 139131), (387, 46377), (1161, 15459), (3483, 5153)]