21757109

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{5479}}^1$

素因数の和:5528

約数の個数: 12

約数和(自身を含む): 25054560

約数和(自身を除く): 3297451

約数列:

[1, 11, 19, 209, 361, 3971, 5479, 60269, 104101, 1145111, 1977919, 21757109]

約数ペア:

[(1, 21757109), (11, 1977919), (19, 1145111), (209, 104101), (361, 60269), (3971, 5479)]