666690297

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{9887}}^1$

素因数の和:9942

約数の個数: 48

約数和(自身を含む): 1158082560

約数和(自身を除く): 491392263

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 169, 247, 273, 399, 507, 741, 1183, 1729, 3211, 3549, 5187, 9633, 9887, 22477, 29661, 67431, 69209, 128531, 187853, 207627, 385593, 563559, 899717, 1314971, 1670903, 2442089, 2699151, 3944913, 5012709, 7326267, 11696321, 17094623, 31747157, 35088963, 51283869, 95241471, 222230099, 666690297]

約数ペア:

[(1, 666690297), (3, 222230099), (7, 95241471), (13, 51283869), (19, 35088963), (21, 31747157), (39, 17094623), (57, 11696321), (91, 7326267), (133, 5012709), (169, 3944913), (247, 2699151), (273, 2442089), (399, 1670903), (507, 1314971), (741, 899717), (1183, 563559), (1729, 385593), (3211, 207627), (3549, 187853), (5187, 128531), (9633, 69209), (9887, 67431), (22477, 29661)]