209364617

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{26921}}^1$

素因数の和:27040

約数の個数: 16

約数和(自身を含む): 263620224

約数和(自身を除く): 54255607

約数列:

[1, 7, 11, 77, 101, 707, 1111, 7777, 26921, 188447, 296131, 2072917, 2719021, 19033147, 29909231, 209364617]

約数ペア:

[(1, 209364617), (7, 29909231), (11, 19033147), (77, 2719021), (101, 2072917), (707, 296131), (1111, 188447), (7777, 26921)]