21533963

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 24352224

約数和(自身を除く): 2818261

約数列:

[1, 11, 37, 157, 337, 407, 1727, 3707, 5809, 12469, 52909, 63899, 137159, 581999, 1957633, 21533963]

約数ペア:

[(1, 21533963), (11, 1957633), (37, 581999), (157, 137159), (337, 63899), (407, 52909), (1727, 12469), (3707, 5809)]