19955509

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:732

約数の個数: 16

約数和(自身を含む): 23760000

約数和(自身を除く): 3804491

約数列:

[1, 7, 29, 197, 203, 499, 1379, 3493, 5713, 14471, 39991, 98303, 101297, 688121, 2850787, 19955509]

約数ペア:

[(1, 19955509), (7, 2850787), (29, 688121), (197, 101297), (203, 98303), (499, 39991), (1379, 14471), (3493, 5713)]