21951105

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{769}}^1$

素因数の和:961

約数の個数: 32

約数和(自身を含む): 38586240

約数和(自身を除く): 16635135

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 173, 519, 769, 865, 1903, 2307, 2595, 3845, 5709, 8459, 9515, 11535, 25377, 28545, 42295, 126885, 133037, 399111, 665185, 1463407, 1995555, 4390221, 7317035, 21951105]

約数ペア:

[(1, 21951105), (3, 7317035), (5, 4390221), (11, 1995555), (15, 1463407), (33, 665185), (55, 399111), (165, 133037), (173, 126885), (519, 42295), (769, 28545), (865, 25377), (1903, 11535), (2307, 9515), (2595, 8459), (3845, 5709)]