21801402

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2437}}^1$

素因数の和:2523

約数の個数: 48

約数和(自身を含む): 54767232

約数和(自身を除く): 32965830

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 71, 126, 142, 213, 426, 497, 639, 994, 1278, 1491, 2437, 2982, 4473, 4874, 7311, 8946, 14622, 17059, 21933, 34118, 43866, 51177, 102354, 153531, 173027, 307062, 346054, 519081, 1038162, 1211189, 1557243, 2422378, 3114486, 3633567, 7267134, 10900701, 21801402]

約数ペア:

[(1, 21801402), (2, 10900701), (3, 7267134), (6, 3633567), (7, 3114486), (9, 2422378), (14, 1557243), (18, 1211189), (21, 1038162), (42, 519081), (63, 346054), (71, 307062), (126, 173027), (142, 153531), (213, 102354), (426, 51177), (497, 43866), (639, 34118), (994, 21933), (1278, 17059), (1491, 14622), (2437, 8946), (2982, 7311), (4473, 4874)]