20687264

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{223}}^2$

素因数の和:469

約数の個数: 36

約数和(自身を含む): 44058546

約数和(自身を除く): 23371282

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 223, 416, 446, 892, 1784, 2899, 3568, 5798, 7136, 11596, 23192, 46384, 49729, 92768, 99458, 198916, 397832, 646477, 795664, 1292954, 1591328, 2585908, 5171816, 10343632, 20687264]

約数ペア:

[(1, 20687264), (2, 10343632), (4, 5171816), (8, 2585908), (13, 1591328), (16, 1292954), (26, 795664), (32, 646477), (52, 397832), (104, 198916), (208, 99458), (223, 92768), (416, 49729), (446, 46384), (892, 23192), (1784, 11596), (2899, 7136), (3568, 5798)]