21516605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{2027}}^1$

素因数の和:2236

約数の個数: 16

約数和(自身を含む): 28327104

約数和(自身を除く): 6810499

約数列:

[1, 5, 11, 55, 193, 965, 2027, 2123, 10135, 10615, 22297, 111485, 391211, 1956055, 4303321, 21516605]

約数ペア:

[(1, 21516605), (5, 4303321), (11, 1956055), (55, 391211), (193, 111485), (965, 22297), (2027, 10615), (2123, 10135)]