21584670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{1709}}^1$

素因数の和:2140

約数の個数: 32

約数和(自身を含む): 51956640

約数和(自身を除く): 30371970

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 421, 842, 1263, 1709, 2105, 2526, 3418, 4210, 5127, 6315, 8545, 10254, 12630, 17090, 25635, 51270, 719489, 1438978, 2158467, 3597445, 4316934, 7194890, 10792335, 21584670]

約数ペア:

[(1, 21584670), (2, 10792335), (3, 7194890), (5, 4316934), (6, 3597445), (10, 2158467), (15, 1438978), (30, 719489), (421, 51270), (842, 25635), (1263, 17090), (1709, 12630), (2105, 10254), (2526, 8545), (3418, 6315), (4210, 5127)]