19389887

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 22561056

約数和(自身を除く): 3171169

約数列:

[1, 11, 37, 61, 71, 121, 407, 671, 781, 2257, 2627, 4331, 4477, 7381, 8591, 24827, 28897, 47641, 160247, 273097, 317867, 524051, 1762717, 19389887]

約数ペア:

[(1, 19389887), (11, 1762717), (37, 524051), (61, 317867), (71, 273097), (121, 160247), (407, 47641), (671, 28897), (781, 24827), (2257, 8591), (2627, 7381), (4331, 4477)]