21757316

素因数分解:

$2^2\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1201}}^1$

素因数の和:1859

約数の個数: 24

約数和(自身を含む): 43618176

約数和(自身を除く): 21860860

約数列:

[1, 2, 4, 7, 14, 28, 647, 1201, 1294, 2402, 2588, 4529, 4804, 8407, 9058, 16814, 18116, 33628, 777047, 1554094, 3108188, 5439329, 10878658, 21757316]

約数ペア:

[(1, 21757316), (2, 10878658), (4, 5439329), (7, 3108188), (14, 1554094), (28, 777047), (647, 33628), (1201, 18116), (1294, 16814), (2402, 9058), (2588, 8407), (4529, 4804)]