20979257

素因数分解:

${\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:368

約数の個数: 16

約数和(自身を含む): 23181312

約数和(自身を除く): 2202055

約数列:

[1, 13, 97, 127, 131, 1261, 1651, 1703, 12319, 12707, 16637, 160147, 165191, 216281, 1613789, 20979257]

約数ペア:

[(1, 20979257), (13, 1613789), (97, 216281), (127, 165191), (131, 160147), (1261, 16637), (1651, 12707), (1703, 12319)]