1255919

素因数分解:

$7^2\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:123

約数の個数: 18

約数和(自身を含む): 1563624

約数和(自身を除く): 307705

約数列:

[1, 7, 19, 49, 71, 133, 361, 497, 931, 1349, 2527, 3479, 9443, 17689, 25631, 66101, 179417, 1255919]

約数ペア:

[(1, 1255919), (7, 179417), (19, 66101), (49, 25631), (71, 17689), (133, 9443), (361, 3479), (497, 2527), (931, 1349)]