21538396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21283}}^1$

素因数の和:21321

約数の個数: 24

約数和(自身を含む): 42908544

約数和(自身を除く): 21370148

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 21283, 42566, 85132, 234113, 468226, 489509, 936452, 979018, 1958036, 5384599, 10769198, 21538396]

約数ペア:

[(1, 21538396), (2, 10769198), (4, 5384599), (11, 1958036), (22, 979018), (23, 936452), (44, 489509), (46, 468226), (92, 234113), (253, 85132), (506, 42566), (1012, 21283)]