21337195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2791}}^1$

素因数の和:2946

約数の個数: 16

約数和(自身を含む): 28143360

約数和(自身を除く): 6806165

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2791, 7645, 13955, 30701, 153505, 387949, 1939745, 4267439, 21337195]

約数ペア:

[(1, 21337195), (5, 4267439), (11, 1939745), (55, 387949), (139, 153505), (695, 30701), (1529, 13955), (2791, 7645)]