15681981

素因数分解:

$3^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{1559}}^1$

素因数の和:2048

約数の個数: 16

約数和(自身を含む): 23961600

約数和(自身を除く): 8279619

約数列:

[1, 3, 7, 21, 479, 1437, 1559, 3353, 4677, 10059, 10913, 32739, 746761, 2240283, 5227327, 15681981]

約数ペア:

[(1, 15681981), (3, 5227327), (7, 2240283), (21, 746761), (479, 32739), (1437, 10913), (1559, 10059), (3353, 4677)]