28318689

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6709}}^1$

素因数の和:6789

約数の個数: 24

約数和(自身を含む): 47453120

約数和(自身を除く): 19134431

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6709, 20127, 46963, 60381, 140889, 422667, 449503, 1348509, 3146521, 4045527, 9439563, 28318689]

約数ペア:

[(1, 28318689), (3, 9439563), (7, 4045527), (9, 3146521), (21, 1348509), (63, 449503), (67, 422667), (201, 140889), (469, 60381), (603, 46963), (1407, 20127), (4221, 6709)]