19901277

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{4903}}^1$

素因数の和:4961

約数の個数: 24

約数和(自身を含む): 32131008

約数和(自身を除く): 12229731

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 369, 451, 1353, 4059, 4903, 14709, 44127, 53933, 161799, 201023, 485397, 603069, 1809207, 2211253, 6633759, 19901277]

約数ペア:

[(1, 19901277), (3, 6633759), (9, 2211253), (11, 1809207), (33, 603069), (41, 485397), (99, 201023), (123, 161799), (369, 53933), (451, 44127), (1353, 14709), (4059, 4903)]