21439942

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{4993}}^1$

素因数の和:5127

約数の個数: 16

約数和(自身を含む): 34158960

約数和(自身を除く): 12719018

約数列:

[1, 2, 19, 38, 113, 226, 2147, 4294, 4993, 9986, 94867, 189734, 564209, 1128418, 10719971, 21439942]

約数ペア:

[(1, 21439942), (2, 10719971), (19, 1128418), (38, 564209), (113, 189734), (226, 94867), (2147, 9986), (4294, 4993)]