21042795

素因数分解:

$3^1\times 5^1\times {\mathrm{373}}^1\times {\mathrm{3761}}^1$

素因数の和:4142

約数の個数: 16

約数和(自身を含む): 33767712

約数和(自身を除く): 12724917

約数列:

[1, 3, 5, 15, 373, 1119, 1865, 3761, 5595, 11283, 18805, 56415, 1402853, 4208559, 7014265, 21042795]

約数ペア:

[(1, 21042795), (3, 7014265), (5, 4208559), (15, 1402853), (373, 56415), (1119, 18805), (1865, 11283), (3761, 5595)]