20517838

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15289}}^1$

素因数の和:15363

約数の個数: 16

約数和(自身を含む): 34127280

約数和(自身を除く): 13609442

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15289, 30578, 168179, 336358, 932629, 1865258, 10258919, 20517838]

約数ペア:

[(1, 20517838), (2, 10258919), (11, 1865258), (22, 932629), (61, 336358), (122, 168179), (671, 30578), (1342, 15289)]