20497519

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{2729}}^1$

素因数の和:2802

約数の個数: 16

約数和(自身を含む): 24897600

約数和(自身を除く): 4400081

約数列:

[1, 7, 29, 37, 203, 259, 1073, 2729, 7511, 19103, 79141, 100973, 553987, 706811, 2928217, 20497519]

約数ペア:

[(1, 20497519), (7, 2928217), (29, 706811), (37, 553987), (203, 100973), (259, 79141), (1073, 19103), (2729, 7511)]