20211988496

素因数分解:

$2^4\times 7^1\times {\mathrm{2207}}^1\times {\mathrm{81769}}^1$

素因数の和:83991

約数の個数: 40

約数和(自身を含む): 44775943680

約数和(自身を除く): 24563955184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2207, 4414, 8828, 15449, 17656, 30898, 35312, 61796, 81769, 123592, 163538, 247184, 327076, 572383, 654152, 1144766, 1308304, 2289532, 4579064, 9158128, 180464183, 360928366, 721856732, 1263249281, 1443713464, 2526498562, 2887426928, 5052997124, 10105994248, 20211988496]

約数ペア:

[(1, 20211988496), (2, 10105994248), (4, 5052997124), (7, 2887426928), (8, 2526498562), (14, 1443713464), (16, 1263249281), (28, 721856732), (56, 360928366), (112, 180464183), (2207, 9158128), (4414, 4579064), (8828, 2289532), (15449, 1308304), (17656, 1144766), (30898, 654152), (35312, 572383), (61796, 327076), (81769, 247184), (123592, 163538)]