20158479

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:308

約数の個数: 36

約数和(自身を含む): 32491368

約数和(自身を除く): 12332889

約数列:

[1, 3, 9, 11, 33, 99, 107, 121, 173, 321, 363, 519, 963, 1089, 1177, 1557, 1903, 3531, 5709, 10593, 12947, 17127, 18511, 20933, 38841, 55533, 62799, 116523, 166599, 188397, 203621, 610863, 1832589, 2239831, 6719493, 20158479]

約数ペア:

[(1, 20158479), (3, 6719493), (9, 2239831), (11, 1832589), (33, 610863), (99, 203621), (107, 188397), (121, 166599), (173, 116523), (321, 62799), (363, 55533), (519, 38841), (963, 20933), (1089, 18511), (1177, 17127), (1557, 12947), (1903, 10593), (3531, 5709)]