19957288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1511}}^1$

素因数の和:1657

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 20685272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 127, 254, 508, 1016, 1511, 1651, 3022, 3302, 6044, 6604, 12088, 13208, 19643, 39286, 78572, 157144, 191897, 383794, 767588, 1535176, 2494661, 4989322, 9978644, 19957288]

約数ペア:

[(1, 19957288), (2, 9978644), (4, 4989322), (8, 2494661), (13, 1535176), (26, 767588), (52, 383794), (104, 191897), (127, 157144), (254, 78572), (508, 39286), (1016, 19643), (1511, 13208), (1651, 12088), (3022, 6604), (3302, 6044)]