20966584

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36913}}^1$

素因数の和:36990

約数の個数: 16

約数和(自身を含む): 39867120

約数和(自身を除く): 18900536

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36913, 73826, 147652, 295304, 2620823, 5241646, 10483292, 20966584]

約数ペア:

[(1, 20966584), (2, 10483292), (4, 5241646), (8, 2620823), (71, 295304), (142, 147652), (284, 73826), (568, 36913)]