21676580

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47123}}^1$

素因数の和:47155

約数の個数: 24

約数和(自身を含む): 47500992

約数和(自身を除く): 25824412

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 47123, 94246, 188492, 235615, 471230, 942460, 1083829, 2167658, 4335316, 5419145, 10838290, 21676580]

約数ペア:

[(1, 21676580), (2, 10838290), (4, 5419145), (5, 4335316), (10, 2167658), (20, 1083829), (23, 942460), (46, 471230), (92, 235615), (115, 188492), (230, 94246), (460, 47123)]