21838670

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{311981}}^1$

素因数の和:311995

約数の個数: 16

約数和(自身を含む): 44925408

約数和(自身を除く): 23086738

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 311981, 623962, 1559905, 2183867, 3119810, 4367734, 10919335, 21838670]

約数ペア:

[(1, 21838670), (2, 10919335), (5, 4367734), (7, 3119810), (10, 2183867), (14, 1559905), (35, 623962), (70, 311981)]