18397509

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 26861472

約数和(自身を除く): 8463963

約数列:

[1, 3, 13, 39, 131, 169, 277, 393, 507, 831, 1703, 3601, 5109, 10803, 22139, 36287, 46813, 66417, 108861, 140439, 471731, 1415193, 6132503, 18397509]

約数ペア:

[(1, 18397509), (3, 6132503), (13, 1415193), (39, 471731), (131, 140439), (169, 108861), (277, 66417), (393, 46813), (507, 36287), (831, 22139), (1703, 10803), (3601, 5109)]