12518891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 16896000

約数和(自身を除く): 4377109

約数列:

[1, 7, 11, 19, 43, 77, 133, 199, 209, 301, 473, 817, 1393, 1463, 2189, 3311, 3781, 5719, 8557, 8987, 15323, 26467, 41591, 59899, 62909, 94127, 162583, 291137, 658889, 1138081, 1788413, 12518891]

約数ペア:

[(1, 12518891), (7, 1788413), (11, 1138081), (19, 658889), (43, 291137), (77, 162583), (133, 94127), (199, 62909), (209, 59899), (301, 41591), (473, 26467), (817, 15323), (1393, 8987), (1463, 8557), (2189, 5719), (3311, 3781)]