20408965171

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{269}}^1\times {\mathrm{14827}}^1$

素因数の和:15163

約数の個数: 32

約数和(自身を含む): 25366556160

約数和(自身を除く): 4957590989

約数列:

[1, 7, 17, 43, 119, 269, 301, 731, 1883, 4573, 5117, 11567, 14827, 32011, 80969, 103789, 196639, 252059, 637561, 1376473, 1764413, 3988463, 4462927, 10838537, 27919241, 67803871, 75869759, 171503909, 474627097, 1200527363, 2915566453, 20408965171]

約数ペア:

[(1, 20408965171), (7, 2915566453), (17, 1200527363), (43, 474627097), (119, 171503909), (269, 75869759), (301, 67803871), (731, 27919241), (1883, 10838537), (4573, 4462927), (5117, 3988463), (11567, 1764413), (14827, 1376473), (32011, 637561), (80969, 252059), (103789, 196639)]