21979004

素因数分解:

$2^2\times {\mathrm{1303}}^1\times {\mathrm{4217}}^1$

素因数の和:5524

約数の個数: 12

約数和(自身を含む): 38501904

約数和(自身を除く): 16522900

約数列:

[1, 2, 4, 1303, 2606, 4217, 5212, 8434, 16868, 5494751, 10989502, 21979004]

約数ペア:

[(1, 21979004), (2, 10989502), (4, 5494751), (1303, 16868), (2606, 8434), (4217, 5212)]