20870919

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10589}}^1$

素因数の和:10671

約数の個数: 16

約数和(自身を含む): 31346400

約数和(自身を除く): 10475481

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10589, 31767, 95301, 285903, 772997, 2318991, 6956973, 20870919]

約数ペア:

[(1, 20870919), (3, 6956973), (9, 2318991), (27, 772997), (73, 285903), (219, 95301), (657, 31767), (1971, 10589)]