20406972

素因数分解:

$2^2\times 3^1\times {\mathrm{137}}^1\times {\mathrm{12413}}^1$

素因数の和:12557

約数の個数: 24

約数和(自身を含む): 47967696

約数和(自身を除く): 27560724

約数列:

[1, 2, 3, 4, 6, 12, 137, 274, 411, 548, 822, 1644, 12413, 24826, 37239, 49652, 74478, 148956, 1700581, 3401162, 5101743, 6802324, 10203486, 20406972]

約数ペア:

[(1, 20406972), (2, 10203486), (3, 6802324), (4, 5101743), (6, 3401162), (12, 1700581), (137, 148956), (274, 74478), (411, 49652), (548, 37239), (822, 24826), (1644, 12413)]