21393316

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{40213}}^1$

素因数の和:40243

約数の個数: 24

約数和(自身を含む): 45039680

約数和(自身を除く): 23646364

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 532, 40213, 80426, 160852, 281491, 562982, 764047, 1125964, 1528094, 3056188, 5348329, 10696658, 21393316]

約数ペア:

[(1, 21393316), (2, 10696658), (4, 5348329), (7, 3056188), (14, 1528094), (19, 1125964), (28, 764047), (38, 562982), (76, 281491), (133, 160852), (266, 80426), (532, 40213)]