257167221

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{13313}}^1$

素因数の和:13500

約数の個数: 16

約数和(自身を含む): 352767744

約数和(自身を除く): 95600523

約数列:

[1, 3, 47, 137, 141, 411, 6439, 13313, 19317, 39939, 625711, 1823881, 1877133, 5471643, 85722407, 257167221]

約数ペア:

[(1, 257167221), (3, 85722407), (47, 5471643), (137, 1877133), (141, 1823881), (411, 625711), (6439, 39939), (13313, 19317)]