20812984

素因数分解:

$2^3\times {\mathrm{563}}^1\times {\mathrm{4621}}^1$

素因数の和:5190

約数の個数: 16

約数和(自身を含む): 39102120

約数和(自身を除く): 18289136

約数列:

[1, 2, 4, 8, 563, 1126, 2252, 4504, 4621, 9242, 18484, 36968, 2601623, 5203246, 10406492, 20812984]

約数ペア:

[(1, 20812984), (2, 10406492), (4, 5203246), (8, 2601623), (563, 36968), (1126, 18484), (2252, 9242), (4504, 4621)]