3987963

素因数分解:

$3^2\times 7^2\times {\mathrm{9043}}^1$

素因数の和:9063

約数の個数: 18

約数和(自身を含む): 6701604

約数和(自身を除く): 2713641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 9043, 27129, 63301, 81387, 189903, 443107, 569709, 1329321, 3987963]

約数ペア:

[(1, 3987963), (3, 1329321), (7, 569709), (9, 443107), (21, 189903), (49, 81387), (63, 63301), (147, 27129), (441, 9043)]