25243281

素因数分解:

$3^2\times 7^2\times {\mathrm{57241}}^1$

素因数の和:57261

約数の個数: 18

約数和(自身を含む): 42416322

約数和(自身を除く): 17173041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 57241, 171723, 400687, 515169, 1202061, 2804809, 3606183, 8414427, 25243281]

約数ペア:

[(1, 25243281), (3, 8414427), (7, 3606183), (9, 2804809), (21, 1202061), (49, 515169), (63, 400687), (147, 171723), (441, 57241)]