21783381

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{859}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 29721600

約数和(自身を除く): 7938219

約数列:

[1, 3, 79, 107, 237, 321, 859, 2577, 8453, 25359, 67861, 91913, 203583, 275739, 7261127, 21783381]

約数ペア:

[(1, 21783381), (3, 7261127), (79, 275739), (107, 203583), (237, 91913), (321, 67861), (859, 25359), (2577, 8453)]