21938926

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{1489}}^1$

素因数の和:1683

約数の個数: 16

約数和(自身を含む): 33793200

約数和(自身を除く): 11854274

約数列:

[1, 2, 53, 106, 139, 278, 1489, 2978, 7367, 14734, 78917, 157834, 206971, 413942, 10969463, 21938926]

約数ペア:

[(1, 21938926), (2, 10969463), (53, 413942), (106, 206971), (139, 157834), (278, 78917), (1489, 14734), (2978, 7367)]