2565423

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 4338048

約数和(自身を除く): 1772625

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 947, 2709, 2841, 6629, 8523, 19887, 40721, 59661, 122163, 285047, 366489, 855141, 2565423]

約数ペア:

[(1, 2565423), (3, 855141), (7, 366489), (9, 285047), (21, 122163), (43, 59661), (63, 40721), (129, 19887), (301, 8523), (387, 6629), (903, 2841), (947, 2709)]