12978729

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1069}}^1$

素因数の和:1165

約数の個数: 24

約数和(自身を含む): 20030400

約数和(自身を除く): 7051671

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1069, 1349, 3207, 4047, 9621, 12141, 20311, 60933, 75899, 182799, 227697, 683091, 1442081, 4326243, 12978729]

約数ペア:

[(1, 12978729), (3, 4326243), (9, 1442081), (19, 683091), (57, 227697), (71, 182799), (171, 75899), (213, 60933), (639, 20311), (1069, 12141), (1349, 9621), (3207, 4047)]