20780046

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1987}}^1$

素因数の和:2085

約数の個数: 48

約数和(自身を含む): 52101504

約数和(自身を除く): 31321458

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 83, 126, 166, 249, 498, 581, 747, 1162, 1494, 1743, 1987, 3486, 3974, 5229, 5961, 10458, 11922, 13909, 17883, 27818, 35766, 41727, 83454, 125181, 164921, 250362, 329842, 494763, 989526, 1154447, 1484289, 2308894, 2968578, 3463341, 6926682, 10390023, 20780046]

約数ペア:

[(1, 20780046), (2, 10390023), (3, 6926682), (6, 3463341), (7, 2968578), (9, 2308894), (14, 1484289), (18, 1154447), (21, 989526), (42, 494763), (63, 329842), (83, 250362), (126, 164921), (166, 125181), (249, 83454), (498, 41727), (581, 35766), (747, 27818), (1162, 17883), (1494, 13909), (1743, 11922), (1987, 10458), (3486, 5961), (3974, 5229)]