8995987

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:104

約数の個数: 48

約数和(自身を含む): 13108480

約数和(自身を除く): 4112493

約数列:

[1, 7, 11, 13, 19, 43, 77, 91, 121, 133, 143, 209, 247, 301, 473, 559, 817, 847, 1001, 1463, 1573, 1729, 2299, 2717, 3311, 3913, 5203, 5719, 6149, 8987, 10621, 11011, 16093, 19019, 29887, 36421, 43043, 62909, 67639, 74347, 98857, 116831, 209209, 473473, 691999, 817817, 1285141, 8995987]

約数ペア:

[(1, 8995987), (7, 1285141), (11, 817817), (13, 691999), (19, 473473), (43, 209209), (77, 116831), (91, 98857), (121, 74347), (133, 67639), (143, 62909), (209, 43043), (247, 36421), (301, 29887), (473, 19019), (559, 16093), (817, 11011), (847, 10621), (1001, 8987), (1463, 6149), (1573, 5719), (1729, 5203), (2299, 3913), (2717, 3311)]