21054345

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107971}}^1$

素因数の和:107992

約数の個数: 16

約数和(自身を含む): 36278592

約数和(自身を除く): 15224247

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 107971, 323913, 539855, 1403623, 1619565, 4210869, 7018115, 21054345]

約数ペア:

[(1, 21054345), (3, 7018115), (5, 4210869), (13, 1619565), (15, 1403623), (39, 539855), (65, 323913), (195, 107971)]