21252310

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{23879}}^1$

素因数の和:23975

約数の個数: 16

約数和(自身を含む): 38685600

約数和(自身を除く): 17433290

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 23879, 47758, 119395, 238790, 2125231, 4250462, 10626155, 21252310]

約数ペア:

[(1, 21252310), (2, 10626155), (5, 4250462), (10, 2125231), (89, 238790), (178, 119395), (445, 47758), (890, 23879)]