13902889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1$

素因数の和:110

約数の個数: 64

約数和(自身を含む): 21288960

約数和(自身を除く): 7386071

約数列:

[1, 7, 11, 13, 17, 19, 43, 77, 91, 119, 133, 143, 187, 209, 221, 247, 301, 323, 473, 559, 731, 817, 1001, 1309, 1463, 1547, 1729, 2261, 2431, 2717, 3311, 3553, 3913, 4199, 5117, 5719, 6149, 8041, 8987, 9503, 10621, 13889, 17017, 19019, 24871, 29393, 43043, 46189, 56287, 62909, 66521, 74347, 97223, 104533, 116831, 152779, 180557, 323323, 731731, 817817, 1069453, 1263899, 1986127, 13902889]

約数ペア:

[(1, 13902889), (7, 1986127), (11, 1263899), (13, 1069453), (17, 817817), (19, 731731), (43, 323323), (77, 180557), (91, 152779), (119, 116831), (133, 104533), (143, 97223), (187, 74347), (209, 66521), (221, 62909), (247, 56287), (301, 46189), (323, 43043), (473, 29393), (559, 24871), (731, 19019), (817, 17017), (1001, 13889), (1309, 10621), (1463, 9503), (1547, 8987), (1729, 8041), (2261, 6149), (2431, 5719), (2717, 5117), (3311, 4199), (3553, 3913)]