1988284947

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^2\times {\mathrm{4001}}^1$

素因数の和:4100

約数の個数: 36

約数和(自身を含む): 2995593048

約数和(自身を除く): 1007308101

約数列:

[1, 3, 11, 33, 37, 111, 121, 363, 407, 1221, 1369, 4001, 4107, 4477, 12003, 13431, 15059, 44011, 45177, 132033, 148037, 165649, 444111, 484121, 496947, 1452363, 1628407, 4885221, 5477369, 16432107, 17912477, 53737431, 60251059, 180753177, 662761649, 1988284947]

約数ペア:

[(1, 1988284947), (3, 662761649), (11, 180753177), (33, 60251059), (37, 53737431), (111, 17912477), (121, 16432107), (363, 5477369), (407, 4885221), (1221, 1628407), (1369, 1452363), (4001, 496947), (4107, 484121), (4477, 444111), (12003, 165649), (13431, 148037), (15059, 132033), (44011, 45177)]