12639142

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2539}}^1$

素因数の和:2691

約数の個数: 16

約数和(自身を含む): 20116800

約数和(自身を除く): 7477658

約数列:

[1, 2, 19, 38, 131, 262, 2489, 2539, 4978, 5078, 48241, 96482, 332609, 665218, 6319571, 12639142]

約数ペア:

[(1, 12639142), (2, 6319571), (19, 665218), (38, 332609), (131, 96482), (262, 48241), (2489, 5078), (2539, 4978)]