1915663689

素因数分解:

$3^4\times {\mathrm{1999}}^1\times {\mathrm{11831}}^1$

素因数の和:13842

約数の個数: 20

約数和(自身を含む): 2863344000

約数和(自身を除く): 947680311

約数列:

[1, 3, 9, 27, 81, 1999, 5997, 11831, 17991, 35493, 53973, 106479, 161919, 319437, 958311, 23650169, 70950507, 212851521, 638554563, 1915663689]

約数ペア:

[(1, 1915663689), (3, 638554563), (9, 212851521), (27, 70950507), (81, 23650169), (1999, 958311), (5997, 319437), (11831, 161919), (17991, 106479), (35493, 53973)]