19916210

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28051}}^1$

素因数の和:28129

約数の個数: 16

約数和(自身を含む): 36355392

約数和(自身を除く): 16439182

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28051, 56102, 140255, 280510, 1991621, 3983242, 9958105, 19916210]

約数ペア:

[(1, 19916210), (2, 9958105), (5, 3983242), (10, 1991621), (71, 280510), (142, 140255), (355, 56102), (710, 28051)]