21129933

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{2551}}^1$

素因数の和:2816

約数の個数: 16

約数和(自身を含む): 30868992

約数和(自身を除く): 9739059

約数列:

[1, 3, 11, 33, 251, 753, 2551, 2761, 7653, 8283, 28061, 84183, 640301, 1920903, 7043311, 21129933]

約数ペア:

[(1, 21129933), (3, 7043311), (11, 1920903), (33, 640301), (251, 84183), (753, 28061), (2551, 8283), (2761, 7653)]