18389397

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 29514240

約数和(自身を除く): 11124843

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 83, 169, 247, 249, 299, 437, 507, 741, 897, 1079, 1311, 1577, 1909, 3211, 3237, 3887, 4731, 5681, 5727, 9633, 11661, 14027, 17043, 20501, 24817, 36271, 42081, 61503, 73853, 74451, 108813, 221559, 266513, 322621, 471523, 799539, 967863, 1414569, 6129799, 18389397]

約数ペア:

[(1, 18389397), (3, 6129799), (13, 1414569), (19, 967863), (23, 799539), (39, 471523), (57, 322621), (69, 266513), (83, 221559), (169, 108813), (247, 74451), (249, 73853), (299, 61503), (437, 42081), (507, 36271), (741, 24817), (897, 20501), (1079, 17043), (1311, 14027), (1577, 11661), (1909, 9633), (3211, 5727), (3237, 5681), (3887, 4731)]