12686884

素因数分解:

$2^2\times 7^4\times {\mathrm{1321}}^1$

素因数の和:1353

約数の個数: 30

約数和(自身を含む): 25920454

約数和(自身を除く): 13233570

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1321, 1372, 2401, 2642, 4802, 5284, 9247, 9604, 18494, 36988, 64729, 129458, 258916, 453103, 906206, 1812412, 3171721, 6343442, 12686884]

約数ペア:

[(1, 12686884), (2, 6343442), (4, 3171721), (7, 1812412), (14, 906206), (28, 453103), (49, 258916), (98, 129458), (196, 64729), (343, 36988), (686, 18494), (1321, 9604), (1372, 9247), (2401, 5284), (2642, 4802)]