19953681

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{5651}}^1$

素因数の和:5772

約数の個数: 16

約数和(自身を含む): 29299968

約数和(自身を除く): 9346287

約数列:

[1, 3, 11, 33, 107, 321, 1177, 3531, 5651, 16953, 62161, 186483, 604657, 1813971, 6651227, 19953681]

約数ペア:

[(1, 19953681), (3, 6651227), (11, 1813971), (33, 604657), (107, 186483), (321, 62161), (1177, 16953), (3531, 5651)]