397760836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{210233}}^1$

素因数の和:210291

約数の個数: 24

約数和(自身を含む): 777024864

約数和(自身を除く): 379264028

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 210233, 420466, 840932, 2312563, 4625126, 9040019, 9250252, 18080038, 36160076, 99440209, 198880418, 397760836]

約数ペア:

[(1, 397760836), (2, 198880418), (4, 99440209), (11, 36160076), (22, 18080038), (43, 9250252), (44, 9040019), (86, 4625126), (172, 2312563), (473, 840932), (946, 420466), (1892, 210233)]