21054315

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61027}}^1$

素因数の和:61058

約数の個数: 16

約数和(自身を含む): 35152128

約数和(自身を除く): 14097813

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 61027, 183081, 305135, 915405, 1403621, 4210863, 7018105, 21054315]

約数ペア:

[(1, 21054315), (3, 7018105), (5, 4210863), (15, 1403621), (23, 915405), (69, 305135), (115, 183081), (345, 61027)]