20399295

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1123}}^1$

素因数の和:1311

約数の個数: 32

約数和(自身を含む): 37550592

約数和(自身を除く): 17151297

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 173, 519, 865, 1123, 1211, 2595, 3369, 3633, 5615, 6055, 7861, 16845, 18165, 23583, 39305, 117915, 194279, 582837, 971395, 1359953, 2914185, 4079859, 6799765, 20399295]

約数ペア:

[(1, 20399295), (3, 6799765), (5, 4079859), (7, 2914185), (15, 1359953), (21, 971395), (35, 582837), (105, 194279), (173, 117915), (519, 39305), (865, 23583), (1123, 18165), (1211, 16845), (2595, 7861), (3369, 6055), (3633, 5615)]