21062564

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{743}}^1$

素因数の和:1139

約数の個数: 24

約数和(自身を含む): 38955840

約数和(自身を除く): 17893276

約数列:

[1, 2, 4, 19, 38, 76, 373, 743, 746, 1486, 1492, 2972, 7087, 14117, 14174, 28234, 28348, 56468, 277139, 554278, 1108556, 5265641, 10531282, 21062564]

約数ペア:

[(1, 21062564), (2, 10531282), (4, 5265641), (19, 1108556), (38, 554278), (76, 277139), (373, 56468), (743, 28348), (746, 28234), (1486, 14174), (1492, 14117), (2972, 7087)]