20748879

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{2017}}^1$

素因数の和:2156

約数の個数: 20

約数和(自身を含む): 31254784

約数和(自身を除く): 10505905

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 2017, 3429, 6051, 10287, 18153, 54459, 163377, 256159, 768477, 2305431, 6916293, 20748879]

約数ペア:

[(1, 20748879), (3, 6916293), (9, 2305431), (27, 768477), (81, 256159), (127, 163377), (381, 54459), (1143, 18153), (2017, 10287), (3429, 6051)]