209317834

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{21673}}^1$

素因数の和:22125

約数の個数: 16

約数和(自身を含む): 343316160

約数和(自身を除く): 133998326

約数列:

[1, 2, 11, 22, 439, 878, 4829, 9658, 21673, 43346, 238403, 476806, 9514447, 19028894, 104658917, 209317834]

約数ペア:

[(1, 209317834), (2, 104658917), (11, 19028894), (22, 9514447), (439, 476806), (878, 238403), (4829, 43346), (9658, 21673)]