19836784

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{2749}}^1$

素因数の和:2809

約数の個数: 40

約数和(自身を含む): 42966000

約数和(自身を除く): 23129216

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 164, 176, 328, 451, 656, 902, 1804, 2749, 3608, 5498, 7216, 10996, 21992, 30239, 43984, 60478, 112709, 120956, 225418, 241912, 450836, 483824, 901672, 1239799, 1803344, 2479598, 4959196, 9918392, 19836784]

約数ペア:

[(1, 19836784), (2, 9918392), (4, 4959196), (8, 2479598), (11, 1803344), (16, 1239799), (22, 901672), (41, 483824), (44, 450836), (82, 241912), (88, 225418), (164, 120956), (176, 112709), (328, 60478), (451, 43984), (656, 30239), (902, 21992), (1804, 10996), (2749, 7216), (3608, 5498)]