21279204

素因数分解:

$2^2\times 3^2\times {\mathrm{591089}}^1$

素因数の和:591099

約数の個数: 18

約数和(自身を含む): 53789190

約数和(自身を除く): 32509986

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 591089, 1182178, 1773267, 2364356, 3546534, 5319801, 7093068, 10639602, 21279204]

約数ペア:

[(1, 21279204), (2, 10639602), (3, 7093068), (4, 5319801), (6, 3546534), (9, 2364356), (12, 1773267), (18, 1182178), (36, 591089)]