28254741

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 12802539

約数列:

[1, 3, 23, 43, 69, 89, 107, 129, 267, 321, 989, 2047, 2461, 2967, 3827, 4601, 6141, 7383, 9523, 11481, 13803, 28569, 88021, 105823, 219029, 264063, 317469, 409489, 657087, 1228467, 9418247, 28254741]

約数ペア:

[(1, 28254741), (3, 9418247), (23, 1228467), (43, 657087), (69, 409489), (89, 317469), (107, 264063), (129, 219029), (267, 105823), (321, 88021), (989, 28569), (2047, 13803), (2461, 11481), (2967, 9523), (3827, 7383), (4601, 6141)]