205984191

素因数分解:

$3^1\times 7^4\times {\mathrm{28597}}^1$

素因数の和:28628

約数の個数: 20

約数和(自身を含む): 320411992

約数和(自身を除く): 114427801

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 28597, 85791, 200179, 600537, 1401253, 4203759, 9808771, 29426313, 68661397, 205984191]

約数ペア:

[(1, 205984191), (3, 68661397), (7, 29426313), (21, 9808771), (49, 4203759), (147, 1401253), (343, 600537), (1029, 200179), (2401, 85791), (7203, 28597)]