21467685

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2903}}^1$

素因数の和:2957

約数の個数: 32

約数和(自身を含む): 37635840

約数和(自身を除く): 16168155

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2903, 7395, 8709, 14515, 43545, 49351, 84187, 148053, 246755, 252561, 420935, 740265, 1262805, 1431179, 4293537, 7155895, 21467685]

約数ペア:

[(1, 21467685), (3, 7155895), (5, 4293537), (15, 1431179), (17, 1262805), (29, 740265), (51, 420935), (85, 252561), (87, 246755), (145, 148053), (255, 84187), (435, 49351), (493, 43545), (1479, 14515), (2465, 8709), (2903, 7395)]