21256874

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{1193}}^1$

素因数の和:1405

約数の個数: 16

約数和(自身を含む): 32667840

約数和(自身を除く): 11410966

約数列:

[1, 2, 59, 118, 151, 302, 1193, 2386, 8909, 17818, 70387, 140774, 180143, 360286, 10628437, 21256874]

約数ペア:

[(1, 21256874), (2, 10628437), (59, 360286), (118, 180143), (151, 140774), (302, 70387), (1193, 17818), (2386, 8909)]