20147478381

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13091279}}^1$

素因数の和:13091310

約数の個数: 20

約数和(自身を含む): 31680897600

約数和(自身を除く): 11533419219

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13091279, 39273837, 117821511, 248734301, 353464533, 746202903, 1060393599, 2238608709, 6715826127, 20147478381]

約数ペア:

[(1, 20147478381), (3, 6715826127), (9, 2238608709), (19, 1060393599), (27, 746202903), (57, 353464533), (81, 248734301), (171, 117821511), (513, 39273837), (1539, 13091279)]