20861225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10837}}^1$

素因数の和:10865

約数の個数: 24

約数和(自身を含む): 32253888

約数和(自身を除く): 11392663

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10837, 54185, 75859, 119207, 270925, 379295, 596035, 834449, 1896475, 2980175, 4172245, 20861225]

約数ペア:

[(1, 20861225), (5, 4172245), (7, 2980175), (11, 1896475), (25, 834449), (35, 596035), (55, 379295), (77, 270925), (175, 119207), (275, 75859), (385, 54185), (1925, 10837)]