21648274

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{1559}}^1$

素因数の和:1745

約数の個数: 16

約数和(自身を含む): 33359040

約数和(自身を除く): 11710766

約数列:

[1, 2, 53, 106, 131, 262, 1559, 3118, 6943, 13886, 82627, 165254, 204229, 408458, 10824137, 21648274]

約数ペア:

[(1, 21648274), (2, 10824137), (53, 408458), (106, 204229), (131, 165254), (262, 82627), (1559, 13886), (3118, 6943)]