20162989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{8447}}^1$

素因数の和:8496

約数の個数: 16

約数和(自身を含む): 25952256

約数和(自身を除く): 5789267

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 8447, 59129, 92917, 261857, 650419, 1832999, 2880427, 20162989]

約数ペア:

[(1, 20162989), (7, 2880427), (11, 1832999), (31, 650419), (77, 261857), (217, 92917), (341, 59129), (2387, 8447)]