21897007

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 25431728

約数和(自身を除く): 3534721

約数列:

[1, 11, 37, 67, 73, 121, 407, 737, 803, 2479, 2701, 4477, 4891, 8107, 8833, 27269, 29711, 53801, 180967, 299959, 326821, 591811, 1990637, 21897007]

約数ペア:

[(1, 21897007), (11, 1990637), (37, 591811), (67, 326821), (73, 299959), (121, 180967), (407, 53801), (737, 29711), (803, 27269), (2479, 8833), (2701, 8107), (4477, 4891)]