857212

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 18

約数和(自身を含む): 1557024

約数和(自身を除く): 699812

約数列:

[1, 2, 4, 31, 62, 124, 223, 446, 892, 961, 1922, 3844, 6913, 13826, 27652, 214303, 428606, 857212]

約数ペア:

[(1, 857212), (2, 428606), (4, 214303), (31, 27652), (62, 13826), (124, 6913), (223, 3844), (446, 1922), (892, 961)]