21401743

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 24088320

約数和(自身を除く): 2686577

約数列:

[1, 11, 67, 71, 409, 737, 781, 4499, 4757, 27403, 29039, 52327, 301433, 319429, 1945613, 21401743]

約数ペア:

[(1, 21401743), (11, 1945613), (67, 319429), (71, 301433), (409, 52327), (737, 29039), (781, 27403), (4499, 4757)]