157571427

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{631}}^1$

素因数の和:1003

約数の個数: 32

約数和(自身を含む): 239249920

約数和(自身を除く): 81678493

約数列:

[1, 3, 13, 19, 39, 57, 247, 337, 631, 741, 1011, 1893, 4381, 6403, 8203, 11989, 13143, 19209, 24609, 35967, 83239, 155857, 212647, 249717, 467571, 637941, 2764411, 4040293, 8293233, 12120879, 52523809, 157571427]

約数ペア:

[(1, 157571427), (3, 52523809), (13, 12120879), (19, 8293233), (39, 4040293), (57, 2764411), (247, 637941), (337, 467571), (631, 249717), (741, 212647), (1011, 155857), (1893, 83239), (4381, 35967), (6403, 24609), (8203, 19209), (11989, 13143)]