19706986

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17627}}^1$

素因数の和:17685

約数の個数: 16

約数和(自身を含む): 32576544

約数和(自身を除く): 12869558

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 17627, 35254, 229151, 458302, 757961, 1515922, 9853493, 19706986]

約数ペア:

[(1, 19706986), (2, 9853493), (13, 1515922), (26, 757961), (43, 458302), (86, 229151), (559, 35254), (1118, 17627)]