1689903

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:716

約数の個数: 20

約数和(自身を含む): 2609728

約数和(自身を除く): 919825

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 673, 837, 2019, 2511, 6057, 18171, 20863, 54513, 62589, 187767, 563301, 1689903]

約数ペア:

[(1, 1689903), (3, 563301), (9, 187767), (27, 62589), (31, 54513), (81, 20863), (93, 18171), (279, 6057), (673, 2511), (837, 2019)]