20121097864

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{1243271}}^1$

素因数の和:1243318

約数の個数: 48

約数和(自身を含む): 45802140480

約数和(自身を除く): 25681042616

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 289, 476, 578, 952, 1156, 2023, 2312, 4046, 8092, 16184, 1243271, 2486542, 4973084, 8702897, 9946168, 17405794, 21135607, 34811588, 42271214, 69623176, 84542428, 147949249, 169084856, 295898498, 359305319, 591796996, 718610638, 1183593992, 1437221276, 2515137233, 2874442552, 5030274466, 10060548932, 20121097864]

約数ペア:

[(1, 20121097864), (2, 10060548932), (4, 5030274466), (7, 2874442552), (8, 2515137233), (14, 1437221276), (17, 1183593992), (28, 718610638), (34, 591796996), (56, 359305319), (68, 295898498), (119, 169084856), (136, 147949249), (238, 84542428), (289, 69623176), (476, 42271214), (578, 34811588), (952, 21135607), (1156, 17405794), (2023, 9946168), (2312, 8702897), (4046, 4973084), (8092, 2486542), (16184, 1243271)]