21017168

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{77269}}^1$

素因数の和:77294

約数の個数: 20

約数和(自身を含む): 43116660

約数和(自身を除く): 22099492

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 77269, 154538, 309076, 618152, 1236304, 1313573, 2627146, 5254292, 10508584, 21017168]

約数ペア:

[(1, 21017168), (2, 10508584), (4, 5254292), (8, 2627146), (16, 1313573), (17, 1236304), (34, 618152), (68, 309076), (136, 154538), (272, 77269)]