21509030

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50021}}^1$

素因数の和:50071

約数の個数: 16

約数和(自身を含む): 39617424

約数和(自身を除く): 18108394

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 50021, 100042, 250105, 500210, 2150903, 4301806, 10754515, 21509030]

約数ペア:

[(1, 21509030), (2, 10754515), (5, 4301806), (10, 2150903), (43, 500210), (86, 250105), (215, 100042), (430, 50021)]