20407976

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{134263}}^1$

素因数の和:134288

約数の個数: 16

約数和(自身を含む): 40279200

約数和(自身を除く): 19871224

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 134263, 268526, 537052, 1074104, 2550997, 5101994, 10203988, 20407976]

約数ペア:

[(1, 20407976), (2, 10203988), (4, 5101994), (8, 2550997), (19, 1074104), (38, 537052), (76, 268526), (152, 134263)]