261919

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:126

約数の個数: 16

約数和(自身を含む): 331776

約数和(自身を除く): 69857

約数列:

[1, 7, 17, 31, 71, 119, 217, 497, 527, 1207, 2201, 3689, 8449, 15407, 37417, 261919]

約数ペア:

[(1, 261919), (7, 37417), (17, 15407), (31, 8449), (71, 3689), (119, 2201), (217, 1207), (497, 527)]