2021840821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{241}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 2995534080

約数和(自身を除く): 973693259

約数列:

[1, 7, 11, 13, 17, 29, 77, 91, 119, 143, 187, 203, 221, 241, 289, 319, 377, 493, 1001, 1309, 1547, 1687, 2023, 2233, 2431, 2639, 2651, 3133, 3179, 3451, 3757, 4097, 4147, 5423, 6409, 6989, 8381, 17017, 18557, 21931, 22253, 26299, 28679, 29029, 34463, 37961, 41327, 44863, 45067, 48923, 53261, 58667, 69649, 70499, 76879, 90857, 92191, 108953, 118813, 241241, 289289, 315469, 372827, 487543, 493493, 538153, 585871, 635999, 645337, 762671, 766139, 831691, 905437, 999427, 1198483, 1306943, 1544569, 2019821, 4101097, 5362973, 6338059, 6995989, 8389381, 9148601, 9959807, 10811983, 14138747, 16990259, 22218031, 26257673, 69718649, 118931813, 155526217, 183803711, 288834403, 2021840821]

約数ペア:

[(1, 2021840821), (7, 288834403), (11, 183803711), (13, 155526217), (17, 118931813), (29, 69718649), (77, 26257673), (91, 22218031), (119, 16990259), (143, 14138747), (187, 10811983), (203, 9959807), (221, 9148601), (241, 8389381), (289, 6995989), (319, 6338059), (377, 5362973), (493, 4101097), (1001, 2019821), (1309, 1544569), (1547, 1306943), (1687, 1198483), (2023, 999427), (2233, 905437), (2431, 831691), (2639, 766139), (2651, 762671), (3133, 645337), (3179, 635999), (3451, 585871), (3757, 538153), (4097, 493493), (4147, 487543), (5423, 372827), (6409, 315469), (6989, 289289), (8381, 241241), (17017, 118813), (18557, 108953), (21931, 92191), (22253, 90857), (26299, 76879), (28679, 70499), (29029, 69649), (34463, 58667), (37961, 53261), (41327, 48923), (44863, 45067)]