19963954

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10093}}^1$

素因数の和:10161

約数の個数: 16

約数和(自身を含む): 31977792

約数和(自身を除く): 12013838

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10093, 20186, 232139, 433999, 464278, 867998, 9981977, 19963954]

約数ペア:

[(1, 19963954), (2, 9981977), (23, 867998), (43, 464278), (46, 433999), (86, 232139), (989, 20186), (1978, 10093)]