1980891

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{107}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 3361176

約数和(自身を除く): 1380285

約数列:

[1, 3, 9, 11, 17, 33, 51, 99, 107, 121, 153, 187, 321, 363, 561, 963, 1089, 1177, 1683, 1819, 2057, 3531, 5457, 6171, 10593, 12947, 16371, 18513, 20009, 38841, 60027, 116523, 180081, 220099, 660297, 1980891]

約数ペア:

[(1, 1980891), (3, 660297), (9, 220099), (11, 180081), (17, 116523), (33, 60027), (51, 38841), (99, 20009), (107, 18513), (121, 16371), (153, 12947), (187, 10593), (321, 6171), (363, 5457), (561, 3531), (963, 2057), (1089, 1819), (1177, 1683)]