2549421

素因数分解:

$3^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 4596480

約数和(自身を除く): 2047059

約数列:

[1, 3, 7, 9, 21, 27, 41, 47, 49, 63, 123, 141, 147, 189, 287, 329, 369, 423, 441, 861, 987, 1107, 1269, 1323, 1927, 2009, 2303, 2583, 2961, 5781, 6027, 6909, 7749, 8883, 13489, 17343, 18081, 20727, 40467, 52029, 54243, 62181, 94423, 121401, 283269, 364203, 849807, 2549421]

約数ペア:

[(1, 2549421), (3, 849807), (7, 364203), (9, 283269), (21, 121401), (27, 94423), (41, 62181), (47, 54243), (49, 52029), (63, 40467), (123, 20727), (141, 18081), (147, 17343), (189, 13489), (287, 8883), (329, 7749), (369, 6909), (423, 6027), (441, 5781), (861, 2961), (987, 2583), (1107, 2303), (1269, 2009), (1323, 1927)]