21299534

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{4673}}^1$

素因数の和:4771

約数の個数: 16

約数和(自身を含む): 33316272

約数和(自身を除く): 12016738

約数列:

[1, 2, 43, 53, 86, 106, 2279, 4558, 4673, 9346, 200939, 247669, 401878, 495338, 10649767, 21299534]

約数ペア:

[(1, 21299534), (2, 10649767), (43, 495338), (53, 401878), (86, 247669), (106, 200939), (2279, 9346), (4558, 4673)]