21739277

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 6129907

約数列:

[1, 7, 17, 31, 71, 83, 119, 217, 497, 527, 581, 1207, 1411, 2201, 2573, 3689, 5893, 8449, 9877, 15407, 18011, 37417, 41251, 43741, 100181, 182683, 261919, 306187, 701267, 1278781, 3105611, 21739277]

約数ペア:

[(1, 21739277), (7, 3105611), (17, 1278781), (31, 701267), (71, 306187), (83, 261919), (119, 182683), (217, 100181), (497, 43741), (527, 41251), (581, 37417), (1207, 18011), (1411, 15407), (2201, 9877), (2573, 8449), (3689, 5893)]