20278314999

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{5351891}}^1$

素因数の和:5352318

約数の個数: 12

約数和(自身を含む): 29360479512

約数和(自身を除く): 9082164513

約数列:

[1, 3, 9, 421, 1263, 3789, 5351891, 16055673, 48167019, 2253146111, 6759438333, 20278314999]

約数ペア:

[(1, 20278314999), (3, 6759438333), (9, 2253146111), (421, 48167019), (1263, 16055673), (3789, 5351891)]