19985147

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{7573}}^1$

素因数の和:7622

約数の個数: 16

約数和(自身を含む): 25448640

約数和(自身を除く): 5463493

約数列:

[1, 7, 13, 29, 91, 203, 377, 2639, 7573, 53011, 98449, 219617, 689143, 1537319, 2855021, 19985147]

約数ペア:

[(1, 19985147), (7, 2855021), (13, 1537319), (29, 689143), (91, 219617), (203, 98449), (377, 53011), (2639, 7573)]