21086810

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{6737}}^1$

素因数の和:7057

約数の個数: 16

約数和(自身を含む): 38083176

約数和(自身を除く): 16996366

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 6737, 13474, 33685, 67370, 2108681, 4217362, 10543405, 21086810]

約数ペア:

[(1, 21086810), (2, 10543405), (5, 4217362), (10, 2108681), (313, 67370), (626, 33685), (1565, 13474), (3130, 6737)]