20864432

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68633}}^1$

素因数の和:68660

約数の個数: 20

約数和(自身を含む): 42553080

約数和(自身を除く): 21688648

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68633, 137266, 274532, 549064, 1098128, 1304027, 2608054, 5216108, 10432216, 20864432]

約数ペア:

[(1, 20864432), (2, 10432216), (4, 5216108), (8, 2608054), (16, 1304027), (19, 1098128), (38, 549064), (76, 274532), (152, 137266), (304, 68633)]