18543105

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{43}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 38630592

約数和(自身を除く): 20087487

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 43, 45, 63, 105, 111, 129, 185, 215, 259, 301, 315, 333, 387, 555, 645, 777, 903, 1295, 1369, 1505, 1591, 1665, 1935, 2331, 2709, 3885, 4107, 4515, 4773, 6845, 7955, 9583, 11137, 11655, 12321, 13545, 14319, 20535, 23865, 28749, 33411, 47915, 55685, 58867, 61605, 71595, 86247, 100233, 143745, 167055, 176601, 294335, 412069, 431235, 501165, 529803, 883005, 1236207, 2060345, 2649015, 3708621, 6181035, 18543105]

約数ペア:

[(1, 18543105), (3, 6181035), (5, 3708621), (7, 2649015), (9, 2060345), (15, 1236207), (21, 883005), (35, 529803), (37, 501165), (43, 431235), (45, 412069), (63, 294335), (105, 176601), (111, 167055), (129, 143745), (185, 100233), (215, 86247), (259, 71595), (301, 61605), (315, 58867), (333, 55685), (387, 47915), (555, 33411), (645, 28749), (777, 23865), (903, 20535), (1295, 14319), (1369, 13545), (1505, 12321), (1591, 11655), (1665, 11137), (1935, 9583), (2331, 7955), (2709, 6845), (3885, 4773), (4107, 4515)]