20928453

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{5897}}^1$

素因数の和:5933

約数の個数: 24

約数和(自身を含む): 34538688

約数和(自身を除く): 13610235

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 5897, 17691, 41279, 76661, 123837, 229983, 536627, 996593, 1609881, 2989779, 6976151, 20928453]

約数ペア:

[(1, 20928453), (3, 6976151), (7, 2989779), (13, 1609881), (21, 996593), (39, 536627), (91, 229983), (169, 123837), (273, 76661), (507, 41279), (1183, 17691), (3549, 5897)]