21095548

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{1409}}^1$

素因数の和:1629

約数の個数: 24

約数和(自身を含む): 39085200

約数和(自身を除く): 17989652

約数列:

[1, 2, 4, 19, 38, 76, 197, 394, 788, 1409, 2818, 3743, 5636, 7486, 14972, 26771, 53542, 107084, 277573, 555146, 1110292, 5273887, 10547774, 21095548]

約数ペア:

[(1, 21095548), (2, 10547774), (4, 5273887), (19, 1110292), (38, 555146), (76, 277573), (197, 107084), (394, 53542), (788, 26771), (1409, 14972), (2818, 7486), (3743, 5636)]