15408981

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{613}}^1$

素因数の和:655

約数の個数: 48

約数和(自身を含む): 27998400

約数和(自身を除く): 12589419

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 133, 147, 171, 189, 399, 441, 513, 613, 931, 1197, 1323, 1839, 2793, 3591, 4291, 5517, 8379, 11647, 12873, 16551, 25137, 30037, 34941, 38619, 81529, 90111, 104823, 115857, 244587, 270333, 314469, 570703, 733761, 810999, 1712109, 2201283, 5136327, 15408981]

約数ペア:

[(1, 15408981), (3, 5136327), (7, 2201283), (9, 1712109), (19, 810999), (21, 733761), (27, 570703), (49, 314469), (57, 270333), (63, 244587), (133, 115857), (147, 104823), (171, 90111), (189, 81529), (399, 38619), (441, 34941), (513, 30037), (613, 25137), (931, 16551), (1197, 12873), (1323, 11647), (1839, 8379), (2793, 5517), (3591, 4291)]