205320241

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{89}}^2$

素因数の和:238

約数の個数: 27

約数和(自身を含む): 252514731

約数和(自身を除く): 47194490

約数列:

[1, 7, 23, 49, 89, 161, 529, 623, 1127, 2047, 3703, 4361, 7921, 14329, 25921, 47081, 55447, 100303, 182183, 329567, 388129, 1275281, 2306969, 4190209, 8926967, 29331463, 205320241]

約数ペア:

[(1, 205320241), (7, 29331463), (23, 8926967), (49, 4190209), (89, 2306969), (161, 1275281), (529, 388129), (623, 329567), (1127, 182183), (2047, 100303), (3703, 55447), (4361, 47081), (7921, 25921)]