21006928

素因数分解:

$2^4\times {\mathrm{293}}^1\times {\mathrm{4481}}^1$

素因数の和:4782

約数の個数: 20

約数和(自身を含む): 40848948

約数和(自身を除く): 19842020

約数列:

[1, 2, 4, 8, 16, 293, 586, 1172, 2344, 4481, 4688, 8962, 17924, 35848, 71696, 1312933, 2625866, 5251732, 10503464, 21006928]

約数ペア:

[(1, 21006928), (2, 10503464), (4, 5251732), (8, 2625866), (16, 1312933), (293, 71696), (586, 35848), (1172, 17924), (2344, 8962), (4481, 4688)]