21207804969

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{543789871}}^1$

素因数の和:543789887

約数の個数: 8

約数和(自身を含む): 30452232832

約数和(自身を除く): 9244427863

約数列:

[1, 3, 13, 39, 543789871, 1631369613, 7069268323, 21207804969]

約数ペア:

[(1, 21207804969), (3, 7069268323), (13, 1631369613), (39, 543789871)]