20529684

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2045

約数の個数: 72

約数和(自身を含む): 60785088

約数和(自身を除く): 40255404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 41, 42, 63, 82, 84, 123, 126, 164, 246, 252, 287, 369, 492, 574, 738, 861, 1148, 1476, 1722, 1987, 2583, 3444, 3974, 5166, 5961, 7948, 10332, 11922, 13909, 17883, 23844, 27818, 35766, 41727, 55636, 71532, 81467, 83454, 125181, 162934, 166908, 244401, 250362, 325868, 488802, 500724, 570269, 733203, 977604, 1140538, 1466406, 1710807, 2281076, 2932812, 3421614, 5132421, 6843228, 10264842, 20529684]

約数ペア:

[(1, 20529684), (2, 10264842), (3, 6843228), (4, 5132421), (6, 3421614), (7, 2932812), (9, 2281076), (12, 1710807), (14, 1466406), (18, 1140538), (21, 977604), (28, 733203), (36, 570269), (41, 500724), (42, 488802), (63, 325868), (82, 250362), (84, 244401), (123, 166908), (126, 162934), (164, 125181), (246, 83454), (252, 81467), (287, 71532), (369, 55636), (492, 41727), (574, 35766), (738, 27818), (861, 23844), (1148, 17883), (1476, 13909), (1722, 11922), (1987, 10332), (2583, 7948), (3444, 5961), (3974, 5166)]