639785377

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{523}}^1\times {\mathrm{15887}}^1$

素因数の和:16428

約数の個数: 16

約数和(自身を含む): 799229952

約数和(自身を除く): 159444575

約数列:

[1, 7, 11, 77, 523, 3661, 5753, 15887, 40271, 111209, 174757, 1223299, 8308901, 58162307, 91397911, 639785377]

約数ペア:

[(1, 639785377), (7, 91397911), (11, 58162307), (77, 8308901), (523, 1223299), (3661, 174757), (5753, 111209), (15887, 40271)]