209494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:207

約数の個数: 16

約数和(自身を含む): 342000

約数和(自身を除く): 132506

約数列:

[1, 2, 19, 37, 38, 74, 149, 298, 703, 1406, 2831, 5513, 5662, 11026, 104747, 209494]

約数ペア:

[(1, 209494), (2, 104747), (19, 11026), (37, 5662), (38, 5513), (74, 2831), (149, 1406), (298, 703)]