201819919

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{28631}}^1$

素因数の和:28710

約数の個数: 16

約数和(自身を含む): 247380480

約数和(自身を除く): 45560561

約数列:

[1, 7, 19, 53, 133, 371, 1007, 7049, 28631, 200417, 543989, 1517443, 3807923, 10622101, 28831417, 201819919]

約数ペア:

[(1, 201819919), (7, 28831417), (19, 10622101), (53, 3807923), (133, 1517443), (371, 543989), (1007, 200417), (7049, 28631)]