20903673

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{21179}}^1$

素因数の和:21236

約数の個数: 16

約数和(自身を含む): 32532480

約数和(自身を除く): 11628807

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 21179, 63537, 148253, 444759, 995413, 2986239, 6967891, 20903673]

約数ペア:

[(1, 20903673), (3, 6967891), (7, 2986239), (21, 995413), (47, 444759), (141, 148253), (329, 63537), (987, 21179)]