205756419

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{1747}}^1$

素因数の和:1887

約数の個数: 32

約数和(自身を含む): 310109184

約数和(自身を除く): 104352765

約数列:

[1, 3, 11, 33, 43, 83, 129, 249, 473, 913, 1419, 1747, 2739, 3569, 5241, 10707, 19217, 39259, 57651, 75121, 117777, 145001, 225363, 435003, 826331, 1595011, 2478993, 4785033, 6235043, 18705129, 68585473, 205756419]

約数ペア:

[(1, 205756419), (3, 68585473), (11, 18705129), (33, 6235043), (43, 4785033), (83, 2478993), (129, 1595011), (249, 826331), (473, 435003), (913, 225363), (1419, 145001), (1747, 117777), (2739, 75121), (3569, 57651), (5241, 39259), (10707, 19217)]