20815669878

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{80680891}}^1$

素因数の和:80680939

約数の個数: 16

約数和(自身を含む): 42599510976

約数和(自身を除く): 21783841098

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 80680891, 161361782, 242042673, 484085346, 3469278313, 6938556626, 10407834939, 20815669878]

約数ペア:

[(1, 20815669878), (2, 10407834939), (3, 6938556626), (6, 3469278313), (43, 484085346), (86, 242042673), (129, 161361782), (258, 80680891)]