20178247779

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{118001449}}^1$

素因数の和:118001474

約数の個数: 12

約数和(自身を含む): 30680377000

約数和(自身を除く): 10502129221

約数列:

[1, 3, 9, 19, 57, 171, 118001449, 354004347, 1062013041, 2242027531, 6726082593, 20178247779]

約数ペア:

[(1, 20178247779), (3, 6726082593), (9, 2242027531), (19, 1062013041), (57, 354004347), (171, 118001449)]