21186243

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{7873}}^1$

素因数の和:7915

約数の個数: 24

約数和(自身を含む): 34393632

約数和(自身を除く): 13207389

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 7873, 23619, 70857, 102349, 181079, 307047, 543237, 921141, 1629711, 2354027, 7062081, 21186243]

約数ペア:

[(1, 21186243), (3, 7062081), (9, 2354027), (13, 1629711), (23, 921141), (39, 543237), (69, 307047), (117, 181079), (207, 102349), (299, 70857), (897, 23619), (2691, 7873)]