21081453

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{739}}^1$

素因数の和:1036

約数の個数: 16

約数和(自身を含む): 29019840

約数和(自身を除く): 7938387

約数列:

[1, 3, 37, 111, 257, 739, 771, 2217, 9509, 27343, 28527, 82029, 189923, 569769, 7027151, 21081453]

約数ペア:

[(1, 21081453), (3, 7027151), (37, 569769), (111, 189923), (257, 82029), (739, 28527), (771, 27343), (2217, 9509)]