221780293

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53791}}^1$

素因数の和:53848

約数の個数: 16

約数和(自身を含む): 275415040

約数和(自身を除く): 53634747

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 53791, 376537, 1022029, 1667521, 7154203, 11672647, 31682899, 221780293]

約数ペア:

[(1, 221780293), (7, 31682899), (19, 11672647), (31, 7154203), (133, 1667521), (217, 1022029), (589, 376537), (4123, 53791)]