28257801

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:557

約数の個数: 32

約数和(自身を含む): 44620800

約数和(自身を除く): 16362999

約数列:

[1, 3, 11, 13, 33, 39, 143, 199, 331, 429, 597, 993, 2189, 2587, 3641, 4303, 6567, 7761, 10923, 12909, 28457, 47333, 65869, 85371, 141999, 197607, 724559, 856297, 2173677, 2568891, 9419267, 28257801]

約数ペア:

[(1, 28257801), (3, 9419267), (11, 2568891), (13, 2173677), (33, 856297), (39, 724559), (143, 197607), (199, 141999), (331, 85371), (429, 65869), (597, 47333), (993, 28457), (2189, 12909), (2587, 10923), (3641, 7761), (4303, 6567)]