21305038

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10771}}^1$

素因数の和:10839

約数の個数: 16

約数和(自身を含む): 34125696

約数和(自身を除く): 12820658

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10771, 21542, 247733, 463153, 495466, 926306, 10652519, 21305038]

約数ペア:

[(1, 21305038), (2, 10652519), (23, 926306), (43, 495466), (46, 463153), (86, 247733), (989, 21542), (1978, 10771)]