138979876

素因数分解:

$2^2\times 7^2\times {\mathrm{521}}^1\times {\mathrm{1361}}^1$

素因数の和:1900

約数の個数: 36

約数和(自身を含む): 283674636

約数和(自身を除く): 144694760

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 521, 1042, 1361, 2084, 2722, 3647, 5444, 7294, 9527, 14588, 19054, 25529, 38108, 51058, 66689, 102116, 133378, 266756, 709081, 1418162, 2836324, 4963567, 9927134, 19854268, 34744969, 69489938, 138979876]

約数ペア:

[(1, 138979876), (2, 69489938), (4, 34744969), (7, 19854268), (14, 9927134), (28, 4963567), (49, 2836324), (98, 1418162), (196, 709081), (521, 266756), (1042, 133378), (1361, 102116), (2084, 66689), (2722, 51058), (3647, 38108), (5444, 25529), (7294, 19054), (9527, 14588)]