19725608

素因数分解:

$2^3\times 7^1\times {\mathrm{163}}^1\times {\mathrm{2161}}^1$

素因数の和:2337

約数の個数: 32

約数和(自身を含む): 42548160

約数和(自身を除く): 22822552

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 163, 326, 652, 1141, 1304, 2161, 2282, 4322, 4564, 8644, 9128, 15127, 17288, 30254, 60508, 121016, 352243, 704486, 1408972, 2465701, 2817944, 4931402, 9862804, 19725608]

約数ペア:

[(1, 19725608), (2, 9862804), (4, 4931402), (7, 2817944), (8, 2465701), (14, 1408972), (28, 704486), (56, 352243), (163, 121016), (326, 60508), (652, 30254), (1141, 17288), (1304, 15127), (2161, 9128), (2282, 8644), (4322, 4564)]