121666559

素因数分解:

$7^3\times {\mathrm{431}}^1\times {\mathrm{823}}^1$

素因数の和:1275

約数の個数: 16

約数和(自身を含む): 142387200

約数和(自身を除く): 20720641

約数列:

[1, 7, 49, 343, 431, 823, 3017, 5761, 21119, 40327, 147833, 282289, 354713, 2482991, 17380937, 121666559]

約数ペア:

[(1, 121666559), (7, 17380937), (49, 2482991), (343, 354713), (431, 282289), (823, 147833), (3017, 40327), (5761, 21119)]