16721210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2141}}^1$

素因数の和:2230

約数の個数: 32

約数和(自身を含む): 33312384

約数和(自身を除く): 16591174

約数列:

[1, 2, 5, 10, 11, 22, 55, 71, 110, 142, 355, 710, 781, 1562, 2141, 3905, 4282, 7810, 10705, 21410, 23551, 47102, 117755, 152011, 235510, 304022, 760055, 1520110, 1672121, 3344242, 8360605, 16721210]

約数ペア:

[(1, 16721210), (2, 8360605), (5, 3344242), (10, 1672121), (11, 1520110), (22, 760055), (55, 304022), (71, 235510), (110, 152011), (142, 117755), (355, 47102), (710, 23551), (781, 21410), (1562, 10705), (2141, 7810), (3905, 4282)]