19756247

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 23150592

約数和(自身を除く): 3394345

約数列:

[1, 7, 71, 127, 313, 497, 889, 2191, 9017, 22223, 39751, 63119, 155561, 278257, 2822321, 19756247]

約数ペア:

[(1, 19756247), (7, 2822321), (71, 278257), (127, 155561), (313, 63119), (497, 39751), (889, 22223), (2191, 9017)]