21765317

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5279}}^1$

素因数の和:5336

約数の個数: 16

約数和(自身を含む): 27033600

約数和(自身を除く): 5268283

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5279, 36953, 100301, 163649, 702107, 1145543, 3109331, 21765317]

約数ペア:

[(1, 21765317), (7, 3109331), (19, 1145543), (31, 702107), (133, 163649), (217, 100301), (589, 36953), (4123, 5279)]