21940139

素因数分解:

${\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1$

素因数の和:374

約数の個数: 16

約数和(自身を含む): 24235008

約数和(自身を除く): 2294869

約数列:

[1, 13, 97, 127, 137, 1261, 1651, 1781, 12319, 13289, 17399, 160147, 172757, 226187, 1687703, 21940139]

約数ペア:

[(1, 21940139), (13, 1687703), (97, 226187), (127, 172757), (137, 160147), (1261, 17399), (1651, 13289), (1781, 12319)]