20803788

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{19927}}^1$

素因数の和:19966

約数の個数: 36

約数和(自身を含む): 54403440

約数和(自身を除く): 33599652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 19927, 39854, 59781, 79708, 119562, 179343, 239124, 358686, 577883, 717372, 1155766, 1733649, 2311532, 3467298, 5200947, 6934596, 10401894, 20803788]

約数ペア:

[(1, 20803788), (2, 10401894), (3, 6934596), (4, 5200947), (6, 3467298), (9, 2311532), (12, 1733649), (18, 1155766), (29, 717372), (36, 577883), (58, 358686), (87, 239124), (116, 179343), (174, 119562), (261, 79708), (348, 59781), (522, 39854), (1044, 19927)]