206564561

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{1901}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 255081024

約数和(自身を除く): 48516463

約数列:

[1, 7, 19, 43, 133, 301, 361, 817, 1901, 2527, 5719, 13307, 15523, 36119, 81743, 108661, 252833, 572201, 686261, 1553117, 4803827, 10871819, 29509223, 206564561]

約数ペア:

[(1, 206564561), (7, 29509223), (19, 10871819), (43, 4803827), (133, 1553117), (301, 686261), (361, 572201), (817, 252833), (1901, 108661), (2527, 81743), (5719, 36119), (13307, 15523)]