20978622

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 58982400

約数和(自身を除く): 38003778

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 23, 27, 38, 42, 46, 54, 57, 63, 69, 114, 126, 127, 133, 138, 161, 171, 189, 207, 254, 266, 322, 342, 378, 381, 399, 414, 437, 483, 513, 621, 762, 798, 874, 889, 966, 1026, 1143, 1197, 1242, 1311, 1449, 1778, 2286, 2394, 2413, 2622, 2667, 2898, 2921, 3059, 3429, 3591, 3933, 4347, 4826, 5334, 5842, 6118, 6858, 7182, 7239, 7866, 8001, 8694, 8763, 9177, 11799, 14478, 16002, 16891, 17526, 18354, 20447, 21717, 23598, 24003, 26289, 27531, 33782, 40894, 43434, 48006, 50673, 52578, 55062, 55499, 61341, 65151, 78867, 82593, 101346, 110998, 122682, 130302, 152019, 157734, 165186, 166497, 184023, 304038, 332994, 368046, 388493, 456057, 499491, 552069, 776986, 912114, 998982, 1104138, 1165479, 1498473, 2330958, 2996946, 3496437, 6992874, 10489311, 20978622]

約数ペア:

[(1, 20978622), (2, 10489311), (3, 6992874), (6, 3496437), (7, 2996946), (9, 2330958), (14, 1498473), (18, 1165479), (19, 1104138), (21, 998982), (23, 912114), (27, 776986), (38, 552069), (42, 499491), (46, 456057), (54, 388493), (57, 368046), (63, 332994), (69, 304038), (114, 184023), (126, 166497), (127, 165186), (133, 157734), (138, 152019), (161, 130302), (171, 122682), (189, 110998), (207, 101346), (254, 82593), (266, 78867), (322, 65151), (342, 61341), (378, 55499), (381, 55062), (399, 52578), (414, 50673), (437, 48006), (483, 43434), (513, 40894), (621, 33782), (762, 27531), (798, 26289), (874, 24003), (889, 23598), (966, 21717), (1026, 20447), (1143, 18354), (1197, 17526), (1242, 16891), (1311, 16002), (1449, 14478), (1778, 11799), (2286, 9177), (2394, 8763), (2413, 8694), (2622, 8001), (2667, 7866), (2898, 7239), (2921, 7182), (3059, 6858), (3429, 6118), (3591, 5842), (3933, 5334), (4347, 4826)]