21656701

素因数分解:

${\mathrm{11}}^3\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:393

約数の個数: 16

約数和(自身を含む): 24349248

約数和(自身を除く): 2692547

約数列:

[1, 11, 53, 121, 307, 583, 1331, 3377, 6413, 16271, 37147, 70543, 178981, 408617, 1968791, 21656701]

約数ペア:

[(1, 21656701), (11, 1968791), (53, 408617), (121, 178981), (307, 70543), (583, 37147), (1331, 16271), (3377, 6413)]