19696689

素因数分解:

$3^4\times {\mathrm{241}}^1\times {\mathrm{1009}}^1$

素因数の和:1262

約数の個数: 20

約数和(自身を含む): 29574820

約数和(自身を除く): 9878131

約数列:

[1, 3, 9, 27, 81, 241, 723, 1009, 2169, 3027, 6507, 9081, 19521, 27243, 81729, 243169, 729507, 2188521, 6565563, 19696689]

約数ペア:

[(1, 19696689), (3, 6565563), (9, 2188521), (27, 729507), (81, 243169), (241, 81729), (723, 27243), (1009, 19521), (2169, 9081), (3027, 6507)]