21526780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97849}}^1$

素因数の和:97869

約数の個数: 24

約数和(自身を含む): 49316400

約数和(自身を除く): 27789620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97849, 195698, 391396, 489245, 978490, 1076339, 1956980, 2152678, 4305356, 5381695, 10763390, 21526780]

約数ペア:

[(1, 21526780), (2, 10763390), (4, 5381695), (5, 4305356), (10, 2152678), (11, 1956980), (20, 1076339), (22, 978490), (44, 489245), (55, 391396), (110, 195698), (220, 97849)]