20688548

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{751}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 37142784

約数和(自身を除く): 16454236

約数列:

[1, 2, 4, 71, 97, 142, 194, 284, 388, 751, 1502, 3004, 6887, 13774, 27548, 53321, 72847, 106642, 145694, 213284, 291388, 5172137, 10344274, 20688548]

約数ペア:

[(1, 20688548), (2, 10344274), (4, 5172137), (71, 291388), (97, 213284), (142, 145694), (194, 106642), (284, 72847), (388, 53321), (751, 27548), (1502, 13774), (3004, 6887)]