21760048

素因数分解:

$2^4\times {\mathrm{311}}^1\times {\mathrm{4373}}^1$

素因数の和:4692

約数の個数: 20

約数和(自身を含む): 42305328

約数和(自身を除く): 20545280

約数列:

[1, 2, 4, 8, 16, 311, 622, 1244, 2488, 4373, 4976, 8746, 17492, 34984, 69968, 1360003, 2720006, 5440012, 10880024, 21760048]

約数ペア:

[(1, 21760048), (2, 10880024), (4, 5440012), (8, 2720006), (16, 1360003), (311, 69968), (622, 34984), (1244, 17492), (2488, 8746), (4373, 4976)]