261808127

素因数分解:

$7^3\times {\mathrm{443}}^1\times {\mathrm{1723}}^1$

素因数の和:2187

約数の個数: 16

約数和(自身を含む): 306182400

約数和(自身を除く): 44374273

約数列:

[1, 7, 49, 343, 443, 1723, 3101, 12061, 21707, 84427, 151949, 590989, 763289, 5343023, 37401161, 261808127]

約数ペア:

[(1, 261808127), (7, 37401161), (49, 5343023), (343, 763289), (443, 590989), (1723, 151949), (3101, 84427), (12061, 21707)]