21009954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500237}}^1$

素因数の和:500249

約数の個数: 16

約数和(自身を含む): 48022848

約数和(自身を除く): 27012894

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500237, 1000474, 1500711, 3001422, 3501659, 7003318, 10504977, 21009954]

約数ペア:

[(1, 21009954), (2, 10504977), (3, 7003318), (6, 3501659), (7, 3001422), (14, 1500711), (21, 1000474), (42, 500237)]