21641543

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{5303}}^1$

素因数の和:5374

約数の個数: 16

約数和(自身を含む): 27495936

約数和(自身を除く): 5854393

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 5303, 37121, 58333, 281059, 408331, 1967413, 3091649, 21641543]

約数ペア:

[(1, 21641543), (7, 3091649), (11, 1967413), (53, 408331), (77, 281059), (371, 58333), (583, 37121), (4081, 5303)]