21571863

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1609}}^1$

素因数の和:1762

約数の個数: 16

約数和(自身を含む): 29752800

約数和(自身を除く): 8180937

約数列:

[1, 3, 41, 109, 123, 327, 1609, 4469, 4827, 13407, 65969, 175381, 197907, 526143, 7190621, 21571863]

約数ペア:

[(1, 21571863), (3, 7190621), (41, 526143), (109, 197907), (123, 175381), (327, 65969), (1609, 13407), (4469, 4827)]