28700287

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9091}}^1$

素因数の和:9150

約数の個数: 16

約数和(自身を含む): 36658944

約数和(自身を除く): 7958657

約数列:

[1, 7, 11, 41, 77, 287, 451, 3157, 9091, 63637, 100001, 372731, 700007, 2609117, 4100041, 28700287]

約数ペア:

[(1, 28700287), (7, 4100041), (11, 2609117), (41, 700007), (77, 372731), (287, 100001), (451, 63637), (3157, 9091)]