18542511

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{167}}^1$

素因数の和:272

約数の個数: 36

約数和(自身を含む): 29575728

約数和(自身を除く): 11033217

約数列:

[1, 3, 9, 13, 39, 73, 117, 167, 169, 219, 501, 507, 657, 949, 1503, 1521, 2171, 2847, 6513, 8541, 12191, 12337, 19539, 28223, 36573, 37011, 84669, 109719, 111033, 158483, 254007, 475449, 1426347, 2060279, 6180837, 18542511]

約数ペア:

[(1, 18542511), (3, 6180837), (9, 2060279), (13, 1426347), (39, 475449), (73, 254007), (117, 158483), (167, 111033), (169, 109719), (219, 84669), (501, 37011), (507, 36573), (657, 28223), (949, 19539), (1503, 12337), (1521, 12191), (2171, 8541), (2847, 6513)]