21356303

素因数分解:

${\mathrm{31}}^2\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:446

約数の個数: 12

約数和(自身を含む): 22449744

約数和(自身を除く): 1093441

約数列:

[1, 31, 71, 313, 961, 2201, 9703, 22223, 68231, 300793, 688913, 21356303]

約数ペア:

[(1, 21356303), (31, 688913), (71, 300793), (313, 68231), (961, 22223), (2201, 9703)]