20780834

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:422

約数の個数: 24

約数和(自身を含む): 33469140

約数和(自身を除く): 12688306

約数列:

[1, 2, 17, 34, 157, 229, 289, 314, 458, 578, 2669, 3893, 5338, 7786, 35953, 45373, 66181, 71906, 90746, 132362, 611201, 1222402, 10390417, 20780834]

約数ペア:

[(1, 20780834), (2, 10390417), (17, 1222402), (34, 611201), (157, 132362), (229, 90746), (289, 71906), (314, 66181), (458, 45373), (578, 35953), (2669, 7786), (3893, 5338)]