216854281

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{4597}}^1$

素因数の和:4920

約数の個数: 16

約数和(自身を含む): 259547904

約数和(自身を除く): 42693623

約数列:

[1, 7, 23, 161, 293, 2051, 4597, 6739, 32179, 47173, 105731, 740117, 1346921, 9428447, 30979183, 216854281]

約数ペア:

[(1, 216854281), (7, 30979183), (23, 9428447), (161, 1346921), (293, 740117), (2051, 105731), (4597, 47173), (6739, 32179)]