20557264

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2017}}^1$

素因数の和:2052

約数の個数: 60

約数和(自身を含む): 49921284

約数和(自身を除く): 29364020

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2017, 2548, 4034, 5096, 8068, 10192, 14119, 16136, 26221, 28238, 32272, 52442, 56476, 98833, 104884, 112952, 183547, 197666, 209768, 225904, 367094, 395332, 419536, 734188, 790664, 1284829, 1468376, 1581328, 2569658, 2936752, 5139316, 10278632, 20557264]

約数ペア:

[(1, 20557264), (2, 10278632), (4, 5139316), (7, 2936752), (8, 2569658), (13, 1581328), (14, 1468376), (16, 1284829), (26, 790664), (28, 734188), (49, 419536), (52, 395332), (56, 367094), (91, 225904), (98, 209768), (104, 197666), (112, 183547), (182, 112952), (196, 104884), (208, 98833), (364, 56476), (392, 52442), (637, 32272), (728, 28238), (784, 26221), (1274, 16136), (1456, 14119), (2017, 10192), (2548, 8068), (4034, 5096)]