20948305

素因数分解:

$5^1\times 7^1\times {\mathrm{487}}^1\times {\mathrm{1229}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 28811520

約数和(自身を除く): 7863215

約数列:

[1, 5, 7, 35, 487, 1229, 2435, 3409, 6145, 8603, 17045, 43015, 598523, 2992615, 4189661, 20948305]

約数ペア:

[(1, 20948305), (5, 4189661), (7, 2992615), (35, 598523), (487, 43015), (1229, 17045), (2435, 8603), (3409, 6145)]