21083095

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5399}}^1$

素因数の和:5486

約数の個数: 16

約数和(自身を含む): 27993600

約数和(自身を除く): 6910505

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 5399, 26995, 59389, 296945, 383329, 1916645, 4216619, 21083095]

約数ペア:

[(1, 21083095), (5, 4216619), (11, 1916645), (55, 383329), (71, 296945), (355, 59389), (781, 26995), (3905, 5399)]