20438845

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{34351}}^1$

素因数の和:34380

約数の個数: 16

約数和(自身を含む): 29680128

約数和(自身を除く): 9241283

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 34351, 171755, 240457, 583967, 1202285, 2919835, 4087769, 20438845]

約数ペア:

[(1, 20438845), (5, 4087769), (7, 2919835), (17, 1202285), (35, 583967), (85, 240457), (119, 171755), (595, 34351)]