19938748779

素因数分解:

$3^3\times {\mathrm{263}}^1\times {\mathrm{2807879}}^1$

素因数の和:2808151

約数の個数: 16

約数和(自身を含む): 29651212800

約数和(自身を除く): 9712464021

約数列:

[1, 3, 9, 27, 263, 789, 2367, 7101, 2807879, 8423637, 25270911, 75812733, 738472177, 2215416531, 6646249593, 19938748779]

約数ペア:

[(1, 19938748779), (3, 6646249593), (9, 2215416531), (27, 738472177), (263, 75812733), (789, 25270911), (2367, 8423637), (7101, 2807879)]