21185768

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{36277}}^1$

素因数の和:36356

約数の個数: 16

約数和(自身を含む): 40268580

約数和(自身を除く): 19082812

約数列:

[1, 2, 4, 8, 73, 146, 292, 584, 36277, 72554, 145108, 290216, 2648221, 5296442, 10592884, 21185768]

約数ペア:

[(1, 21185768), (2, 10592884), (4, 5296442), (8, 2648221), (73, 290216), (146, 145108), (292, 72554), (584, 36277)]