21742288

素因数分解:

$2^4\times {\mathrm{653}}^1\times {\mathrm{2081}}^1$

素因数の和:2742

約数の個数: 20

約数和(自身を含む): 42210468

約数和(自身を除く): 20468180

約数列:

[1, 2, 4, 8, 16, 653, 1306, 2081, 2612, 4162, 5224, 8324, 10448, 16648, 33296, 1358893, 2717786, 5435572, 10871144, 21742288]

約数ペア:

[(1, 21742288), (2, 10871144), (4, 5435572), (8, 2717786), (16, 1358893), (653, 33296), (1306, 16648), (2081, 10448), (2612, 8324), (4162, 5224)]