21321211

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{683}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 2317829

約数列:

[1, 19, 31, 53, 589, 683, 1007, 1643, 12977, 21173, 31217, 36199, 402287, 687781, 1122169, 21321211]

約数ペア:

[(1, 21321211), (19, 1122169), (31, 687781), (53, 402287), (589, 36199), (683, 31217), (1007, 21173), (1643, 12977)]