19988144

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{337}}^2$

素因数の和:693

約数の個数: 30

約数和(自身を含む): 42373404

約数和(自身を除く): 22385260

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 337, 674, 1348, 2696, 3707, 5392, 7414, 14828, 29656, 59312, 113569, 227138, 454276, 908552, 1249259, 1817104, 2498518, 4997036, 9994072, 19988144]

約数ペア:

[(1, 19988144), (2, 9994072), (4, 4997036), (8, 2498518), (11, 1817104), (16, 1249259), (22, 908552), (44, 454276), (88, 227138), (176, 113569), (337, 59312), (674, 29656), (1348, 14828), (2696, 7414), (3707, 5392)]