28627641

素因数分解:

$3^3\times 7^1\times {\mathrm{167}}^1\times {\mathrm{907}}^1$

素因数の和:1090

約数の個数: 32

約数和(自身を含む): 48814080

約数和(自身を除く): 20186439

約数列:

[1, 3, 7, 9, 21, 27, 63, 167, 189, 501, 907, 1169, 1503, 2721, 3507, 4509, 6349, 8163, 10521, 19047, 24489, 31563, 57141, 151469, 171423, 454407, 1060283, 1363221, 3180849, 4089663, 9542547, 28627641]

約数ペア:

[(1, 28627641), (3, 9542547), (7, 4089663), (9, 3180849), (21, 1363221), (27, 1060283), (63, 454407), (167, 171423), (189, 151469), (501, 57141), (907, 31563), (1169, 24489), (1503, 19047), (2721, 10521), (3507, 8163), (4509, 6349)]