21555824

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13339}}^1$

素因数の和:13448

約数の個数: 20

約数和(自身を含む): 42181080

約数和(自身を除く): 20625256

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13339, 26678, 53356, 106712, 213424, 1347239, 2694478, 5388956, 10777912, 21555824]

約数ペア:

[(1, 21555824), (2, 10777912), (4, 5388956), (8, 2694478), (16, 1347239), (101, 213424), (202, 106712), (404, 53356), (808, 26678), (1616, 13339)]