20804272

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9491}}^1$

素因数の和:9636

約数の個数: 20

約数和(自身を含む): 40606776

約数和(自身を除く): 19802504

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9491, 18982, 37964, 75928, 151856, 1300267, 2600534, 5201068, 10402136, 20804272]

約数ペア:

[(1, 20804272), (2, 10402136), (4, 5201068), (8, 2600534), (16, 1300267), (137, 151856), (274, 75928), (548, 37964), (1096, 18982), (2192, 9491)]