19891168

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{56509}}^1$

素因数の和:56530

約数の個数: 24

約数和(自身を含む): 42721560

約数和(自身を除く): 22830392

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 352, 56509, 113018, 226036, 452072, 621599, 904144, 1243198, 1808288, 2486396, 4972792, 9945584, 19891168]

約数ペア:

[(1, 19891168), (2, 9945584), (4, 4972792), (8, 2486396), (11, 1808288), (16, 1243198), (22, 904144), (32, 621599), (44, 452072), (88, 226036), (176, 113018), (352, 56509)]