19108999

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{557}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 24507360

約数和(自身を除く): 5398361

約数列:

[1, 7, 13, 29, 91, 169, 203, 377, 557, 1183, 2639, 3899, 4901, 7241, 16153, 34307, 50687, 94133, 113071, 209989, 658931, 1469923, 2729857, 19108999]

約数ペア:

[(1, 19108999), (7, 2729857), (13, 1469923), (29, 658931), (91, 209989), (169, 113071), (203, 94133), (377, 50687), (557, 34307), (1183, 16153), (2639, 7241), (3899, 4901)]