1920681

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 3248960

約数和(自身を除く): 1328279

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 709, 903, 2127, 2709, 4963, 6381, 14889, 30487, 44667, 91461, 213409, 274383, 640227, 1920681]

約数ペア:

[(1, 1920681), (3, 640227), (7, 274383), (9, 213409), (21, 91461), (43, 44667), (63, 30487), (129, 14889), (301, 6381), (387, 4963), (709, 2709), (903, 2127)]