17845947

素因数分解:

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

素因数の和:118

約数の個数: 64

約数和(自身を含む): 32256000

約数和(自身を除く): 14410053

約数列:

[1, 3, 7, 9, 21, 27, 41, 47, 49, 63, 123, 141, 147, 189, 287, 329, 343, 369, 423, 441, 861, 987, 1029, 1107, 1269, 1323, 1927, 2009, 2303, 2583, 2961, 3087, 5781, 6027, 6909, 7749, 8883, 9261, 13489, 14063, 16121, 17343, 18081, 20727, 40467, 42189, 48363, 52029, 54243, 62181, 94423, 121401, 126567, 145089, 283269, 364203, 379701, 435267, 660961, 849807, 1982883, 2549421, 5948649, 17845947]

約数ペア:

[(1, 17845947), (3, 5948649), (7, 2549421), (9, 1982883), (21, 849807), (27, 660961), (41, 435267), (47, 379701), (49, 364203), (63, 283269), (123, 145089), (141, 126567), (147, 121401), (189, 94423), (287, 62181), (329, 54243), (343, 52029), (369, 48363), (423, 42189), (441, 40467), (861, 20727), (987, 18081), (1029, 17343), (1107, 16121), (1269, 14063), (1323, 13489), (1927, 9261), (2009, 8883), (2303, 7749), (2583, 6909), (2961, 6027), (3087, 5781)]