199976889

素因数分解:

$3^1\times 7^4\times {\mathrm{27763}}^1$

素因数の和:27794

約数の個数: 20

約数和(自身を含む): 311067856

約数和(自身を除く): 111090967

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 27763, 83289, 194341, 583023, 1360387, 4081161, 9522709, 28568127, 66658963, 199976889]

約数ペア:

[(1, 199976889), (3, 66658963), (7, 28568127), (21, 9522709), (49, 4081161), (147, 1360387), (343, 583023), (1029, 194341), (2401, 83289), (7203, 27763)]