20020851

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13009}}^1$

素因数の和:13040

約数の個数: 20

約数和(自身を含む): 31484200

約数和(自身を除く): 11463349

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13009, 39027, 117081, 247171, 351243, 741513, 1053729, 2224539, 6673617, 20020851]

約数ペア:

[(1, 20020851), (3, 6673617), (9, 2224539), (19, 1053729), (27, 741513), (57, 351243), (81, 247171), (171, 117081), (513, 39027), (1539, 13009)]