20778811207

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17231}}^1\times {\mathrm{15661}}^1$

素因数の和:32910

約数の個数: 16

約数和(自身を含む): 25909208064

約数和(自身を除く): 5130396857

約数列:

[1, 7, 11, 77, 15661, 17231, 109627, 120617, 172271, 189541, 1205897, 1326787, 269854691, 1888982837, 2968401601, 20778811207]

約数ペア:

[(1, 20778811207), (7, 2968401601), (11, 1888982837), (77, 269854691), (15661, 1326787), (17231, 1205897), (109627, 189541), (120617, 172271)]