20787029193

素因数分解:

$3^1\times 7^1\times {\mathrm{1237}}^1\times {\mathrm{800209}}^1$

素因数の和:801456

約数の個数: 16

約数和(自身を含む): 31701119360

約数和(自身を除く): 10914090167

約数列:

[1, 3, 7, 21, 1237, 3711, 8659, 25977, 800209, 2400627, 5601463, 16804389, 989858533, 2969575599, 6929009731, 20787029193]

約数ペア:

[(1, 20787029193), (3, 6929009731), (7, 2969575599), (21, 989858533), (1237, 16804389), (3711, 5601463), (8659, 2400627), (25977, 800209)]