20510724

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131479}}^1$

素因数の和:131499

約数の個数: 24

約数和(自身を含む): 51540160

約数和(自身を除く): 31029436

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 131479, 262958, 394437, 525916, 788874, 1577748, 1709227, 3418454, 5127681, 6836908, 10255362, 20510724]

約数ペア:

[(1, 20510724), (2, 10255362), (3, 6836908), (4, 5127681), (6, 3418454), (12, 1709227), (13, 1577748), (26, 788874), (39, 525916), (52, 394437), (78, 262958), (156, 131479)]