28403091

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3191}}^1$

素因数の和:3263

約数の個数: 24

約数和(自身を含む): 43819776

約数和(自身を除く): 15416685

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2967, 3191, 8901, 9573, 28719, 73393, 137213, 220179, 411639, 660537, 1234917, 3155899, 9467697, 28403091]

約数ペア:

[(1, 28403091), (3, 9467697), (9, 3155899), (23, 1234917), (43, 660537), (69, 411639), (129, 220179), (207, 137213), (387, 73393), (989, 28719), (2967, 9573), (3191, 8901)]