21623860

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{4111}}^1$

素因数の和:4383

約数の個数: 24

約数和(自身を含む): 45593856

約数和(自身を除く): 23969996

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 4111, 5260, 8222, 16444, 20555, 41110, 82220, 1081193, 2162386, 4324772, 5405965, 10811930, 21623860]

約数ペア:

[(1, 21623860), (2, 10811930), (4, 5405965), (5, 4324772), (10, 2162386), (20, 1081193), (263, 82220), (526, 41110), (1052, 20555), (1315, 16444), (2630, 8222), (4111, 5260)]