206857665

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{31271}}^1$

素因数の和:31299

約数の個数: 48

約数和(自身を含む): 427800960

約数和(自身を除く): 220943295

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 735, 945, 1323, 2205, 6615, 31271, 93813, 156355, 218897, 281439, 469065, 656691, 844317, 1094485, 1407195, 1532279, 1970073, 3283455, 4221585, 4596837, 5910219, 7661395, 9850365, 13790511, 22984185, 29551095, 41371533, 68952555, 206857665]

約数ペア:

[(1, 206857665), (3, 68952555), (5, 41371533), (7, 29551095), (9, 22984185), (15, 13790511), (21, 9850365), (27, 7661395), (35, 5910219), (45, 4596837), (49, 4221585), (63, 3283455), (105, 1970073), (135, 1532279), (147, 1407195), (189, 1094485), (245, 844317), (315, 656691), (441, 469065), (735, 281439), (945, 218897), (1323, 156355), (2205, 93813), (6615, 31271)]