18909968

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{15349}}^1$

素因数の和:15375

約数の個数: 40

約数和(自身を含む): 45681600

約数和(自身を除く): 26771632

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 15349, 30698, 61396, 107443, 122792, 168839, 214886, 245584, 337678, 429772, 675356, 859544, 1181873, 1350712, 1719088, 2363746, 2701424, 4727492, 9454984, 18909968]

約数ペア:

[(1, 18909968), (2, 9454984), (4, 4727492), (7, 2701424), (8, 2363746), (11, 1719088), (14, 1350712), (16, 1181873), (22, 859544), (28, 675356), (44, 429772), (56, 337678), (77, 245584), (88, 214886), (112, 168839), (154, 122792), (176, 107443), (308, 61396), (616, 30698), (1232, 15349)]