25328247

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4007}}^1$

素因数の和:4067

約数の個数: 24

約数和(自身を含む): 40208256

約数和(自身を除く): 14880009

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 4007, 6321, 12021, 28049, 84147, 172301, 196343, 516903, 589029, 1206107, 3618321, 8442749, 25328247]

約数ペア:

[(1, 25328247), (3, 8442749), (7, 3618321), (21, 1206107), (43, 589029), (49, 516903), (129, 196343), (147, 172301), (301, 84147), (903, 28049), (2107, 12021), (4007, 6321)]