18996412

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{1087}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 35368704

約数和(自身を除く): 16372292

約数列:

[1, 2, 4, 17, 34, 68, 257, 514, 1028, 1087, 2174, 4348, 4369, 8738, 17476, 18479, 36958, 73916, 279359, 558718, 1117436, 4749103, 9498206, 18996412]

約数ペア:

[(1, 18996412), (2, 9498206), (4, 4749103), (17, 1117436), (34, 558718), (68, 279359), (257, 73916), (514, 36958), (1028, 18479), (1087, 17476), (2174, 8738), (4348, 4369)]