21358717

素因数分解:

${\mathrm{19}}^1\times {\mathrm{71}}^2\times {\mathrm{223}}^1$

素因数の和:384

約数の個数: 12

約数和(自身を含む): 22906240

約数和(自身を除く): 1547523

約数列:

[1, 19, 71, 223, 1349, 4237, 5041, 15833, 95779, 300827, 1124143, 21358717]

約数ペア:

[(1, 21358717), (19, 1124143), (71, 300827), (223, 95779), (1349, 15833), (4237, 5041)]