257648769

素因数分解:

$3^5\times 7^1\times {\mathrm{167}}^1\times {\mathrm{907}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 444208128

約数和(自身を除く): 186559359

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 167, 189, 243, 501, 567, 907, 1169, 1503, 1701, 2721, 3507, 4509, 6349, 8163, 10521, 13527, 19047, 24489, 31563, 40581, 57141, 73467, 94689, 151469, 171423, 220401, 284067, 454407, 514269, 1060283, 1363221, 1542807, 3180849, 4089663, 9542547, 12268989, 28627641, 36806967, 85882923, 257648769]

約数ペア:

[(1, 257648769), (3, 85882923), (7, 36806967), (9, 28627641), (21, 12268989), (27, 9542547), (63, 4089663), (81, 3180849), (167, 1542807), (189, 1363221), (243, 1060283), (501, 514269), (567, 454407), (907, 284067), (1169, 220401), (1503, 171423), (1701, 151469), (2721, 94689), (3507, 73467), (4509, 57141), (6349, 40581), (8163, 31563), (10521, 24489), (13527, 19047)]