21556293

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{1559}}^1$

素因数の和:1992

約数の個数: 16

約数和(自身を含む): 31449600

約数和(自身を除く): 9893307

約数列:

[1, 3, 11, 33, 419, 1257, 1559, 4609, 4677, 13827, 17149, 51447, 653221, 1959663, 7185431, 21556293]

約数ペア:

[(1, 21556293), (3, 7185431), (11, 1959663), (33, 653221), (419, 51447), (1257, 17149), (1559, 13827), (4609, 4677)]