19918045

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4481}}^1$

素因数の和:4620

約数の個数: 16

約数和(自身を含む): 27537408

約数和(自身を除く): 7619363

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 4481, 22405, 31367, 156835, 569087, 2845435, 3983609, 19918045]

約数ペア:

[(1, 19918045), (5, 3983609), (7, 2845435), (35, 569087), (127, 156835), (635, 31367), (889, 22405), (4445, 4481)]