21252028

素因数分解:

$2^2\times 7^1\times {\mathrm{759001}}^1$

素因数の和:759012

約数の個数: 12

約数和(自身を含む): 42504112

約数和(自身を除く): 21252084

約数列:

[1, 2, 4, 7, 14, 28, 759001, 1518002, 3036004, 5313007, 10626014, 21252028]

約数ペア:

[(1, 21252028), (2, 10626014), (4, 5313007), (7, 3036004), (14, 1518002), (28, 759001)]