21342008

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{33769}}^1$

素因数の和:33854

約数の個数: 16

約数和(自身を含む): 40524000

約数和(自身を除く): 19181992

約数列:

[1, 2, 4, 8, 79, 158, 316, 632, 33769, 67538, 135076, 270152, 2667751, 5335502, 10671004, 21342008]

約数ペア:

[(1, 21342008), (2, 10671004), (4, 5335502), (8, 2667751), (79, 270152), (158, 135076), (316, 67538), (632, 33769)]