20508776

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{36107}}^1$

素因数の和:36184

約数の個数: 16

約数和(自身を含む): 38996640

約数和(自身を除く): 18487864

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 36107, 72214, 144428, 288856, 2563597, 5127194, 10254388, 20508776]

約数ペア:

[(1, 20508776), (2, 10254388), (4, 5127194), (8, 2563597), (71, 288856), (142, 144428), (284, 72214), (568, 36107)]