20187785527

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31691971}}^1$

素因数の和:31691998

約数の個数: 12

約数和(自身を含む): 25290193656

約数和(自身を除く): 5102408129

約数列:

[1, 7, 13, 49, 91, 637, 31691971, 221843797, 411995623, 1552906579, 2883969361, 20187785527]

約数ペア:

[(1, 20187785527), (7, 2883969361), (13, 1552906579), (49, 411995623), (91, 221843797), (637, 31691971)]