19539484

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{643}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 35054208

約数和(自身を除く): 15514724

約数列:

[1, 2, 4, 71, 107, 142, 214, 284, 428, 643, 1286, 2572, 7597, 15194, 30388, 45653, 68801, 91306, 137602, 182612, 275204, 4884871, 9769742, 19539484]

約数ペア:

[(1, 19539484), (2, 9769742), (4, 4884871), (71, 275204), (107, 182612), (142, 137602), (214, 91306), (284, 68801), (428, 45653), (643, 30388), (1286, 15194), (2572, 7597)]