28777581

素因数分解:

$3^2\times 7^1\times {\mathrm{293}}^1\times {\mathrm{1559}}^1$

素因数の和:1865

約数の個数: 24

約数和(自身を含む): 47698560

約数和(自身を除く): 18920979

約数列:

[1, 3, 7, 9, 21, 63, 293, 879, 1559, 2051, 2637, 4677, 6153, 10913, 14031, 18459, 32739, 98217, 456787, 1370361, 3197509, 4111083, 9592527, 28777581]

約数ペア:

[(1, 28777581), (3, 9592527), (7, 4111083), (9, 3197509), (21, 1370361), (63, 456787), (293, 98217), (879, 32739), (1559, 18459), (2051, 14031), (2637, 10913), (4677, 6153)]