20785604

素因数分解:

$2^2\times 7^2\times {\mathrm{173}}^1\times {\mathrm{613}}^1$

素因数の和:804

約数の個数: 36

約数和(自身を含む): 42627564

約数和(自身を除く): 21841960

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 173, 196, 346, 613, 692, 1211, 1226, 2422, 2452, 4291, 4844, 8477, 8582, 16954, 17164, 30037, 33908, 60074, 106049, 120148, 212098, 424196, 742343, 1484686, 2969372, 5196401, 10392802, 20785604]

約数ペア:

[(1, 20785604), (2, 10392802), (4, 5196401), (7, 2969372), (14, 1484686), (28, 742343), (49, 424196), (98, 212098), (173, 120148), (196, 106049), (346, 60074), (613, 33908), (692, 30037), (1211, 17164), (1226, 16954), (2422, 8582), (2452, 8477), (4291, 4844)]