19794445

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 27184896

約数和(自身を除く): 7390451

約数列:

[1, 5, 11, 37, 55, 71, 137, 185, 355, 407, 685, 781, 1507, 2035, 2627, 3905, 5069, 7535, 9727, 13135, 25345, 28897, 48635, 55759, 106997, 144485, 278795, 359899, 534985, 1799495, 3958889, 19794445]

約数ペア:

[(1, 19794445), (5, 3958889), (11, 1799495), (37, 534985), (55, 359899), (71, 278795), (137, 144485), (185, 106997), (355, 55759), (407, 48635), (685, 28897), (781, 25345), (1507, 13135), (2035, 9727), (2627, 7535), (3905, 5069)]