199921076

素因数分解:

$2^2\times {\mathrm{2389}}^1\times {\mathrm{20921}}^1$

素因数の和:23314

約数の個数: 12

約数和(自身を含む): 350025060

約数和(自身を除く): 150103984

約数列:

[1, 2, 4, 2389, 4778, 9556, 20921, 41842, 83684, 49980269, 99960538, 199921076]

約数ペア:

[(1, 199921076), (2, 99960538), (4, 49980269), (2389, 83684), (4778, 41842), (9556, 20921)]