28898221

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{101}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 34443360

約数和(自身を除く): 5545139

約数列:

[1, 11, 19, 37, 101, 209, 407, 703, 1111, 1369, 1919, 3737, 7733, 15059, 21109, 26011, 41107, 71003, 138269, 286121, 781033, 1520959, 2627111, 28898221]

約数ペア:

[(1, 28898221), (11, 2627111), (19, 1520959), (37, 781033), (101, 286121), (209, 138269), (407, 71003), (703, 41107), (1111, 26011), (1369, 21109), (1919, 15059), (3737, 7733)]