18013281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 28492800

約数和(自身を除く): 10479519

約数列:

[1, 3, 11, 13, 33, 39, 143, 199, 211, 429, 597, 633, 2189, 2321, 2587, 2743, 6567, 6963, 7761, 8229, 28457, 30173, 41989, 85371, 90519, 125967, 461879, 545857, 1385637, 1637571, 6004427, 18013281]

約数ペア:

[(1, 18013281), (3, 6004427), (11, 1637571), (13, 1385637), (33, 545857), (39, 461879), (143, 125967), (199, 90519), (211, 85371), (429, 41989), (597, 30173), (633, 28457), (2189, 8229), (2321, 7761), (2587, 6963), (2743, 6567)]