208585503

素因数分解:

$3^3\times 7^3\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 365568000

約数和(自身を除く): 156982497

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 101, 147, 189, 223, 303, 343, 441, 669, 707, 909, 1029, 1323, 1561, 2007, 2121, 2727, 3087, 4683, 4949, 6021, 6363, 9261, 10927, 14049, 14847, 19089, 22523, 32781, 34643, 42147, 44541, 67569, 76489, 98343, 103929, 133623, 157661, 202707, 229467, 295029, 311787, 472983, 608121, 688401, 935361, 1103627, 1418949, 2065203, 3310881, 4256847, 7725389, 9932643, 23176167, 29797929, 69528501, 208585503]

約数ペア:

[(1, 208585503), (3, 69528501), (7, 29797929), (9, 23176167), (21, 9932643), (27, 7725389), (49, 4256847), (63, 3310881), (101, 2065203), (147, 1418949), (189, 1103627), (223, 935361), (303, 688401), (343, 608121), (441, 472983), (669, 311787), (707, 295029), (909, 229467), (1029, 202707), (1323, 157661), (1561, 133623), (2007, 103929), (2121, 98343), (2727, 76489), (3087, 67569), (4683, 44541), (4949, 42147), (6021, 34643), (6363, 32781), (9261, 22523), (10927, 19089), (14049, 14847)]