20208

素因数分解:

$2^4\times 3^1\times {\mathrm{421}}^1$

素因数の和:432

約数の個数: 20

約数和(自身を含む): 52328

約数和(自身を除く): 32120

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 421, 842, 1263, 1684, 2526, 3368, 5052, 6736, 10104, 20208]

約数ペア:

[(1, 20208), (2, 10104), (3, 6736), (4, 5052), (6, 3368), (8, 2526), (12, 1684), (16, 1263), (24, 842), (48, 421)]