21094311

素因数分解:

$3^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{1997}}^1$

素因数の和:2510

約数の個数: 16

約数和(自身を含む): 32223744

約数和(自身を除く): 11129433

約数列:

[1, 3, 7, 21, 503, 1509, 1997, 3521, 5991, 10563, 13979, 41937, 1004491, 3013473, 7031437, 21094311]

約数ペア:

[(1, 21094311), (3, 7031437), (7, 3013473), (21, 1004491), (503, 41937), (1509, 13979), (1997, 10563), (3521, 5991)]