28008531

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 43366400

約数和(自身を除く): 15357869

約数列:

[1, 3, 9, 27, 31, 93, 109, 279, 307, 327, 837, 921, 981, 2763, 2943, 3379, 8289, 9517, 10137, 28551, 30411, 33463, 85653, 91233, 100389, 256959, 301167, 903501, 1037353, 3112059, 9336177, 28008531]

約数ペア:

[(1, 28008531), (3, 9336177), (9, 3112059), (27, 1037353), (31, 903501), (93, 301167), (109, 256959), (279, 100389), (307, 91233), (327, 85653), (837, 33463), (921, 30411), (981, 28551), (2763, 10137), (2943, 9517), (3379, 8289)]