18679544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4177}}^1$

素因数の和:4239

約数の個数: 32

約数和(自身を含む): 38604720

約数和(自身を除く): 19925176

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4177, 4472, 8354, 16708, 33416, 54301, 108602, 179611, 217204, 359222, 434408, 718444, 1436888, 2334943, 4669886, 9339772, 18679544]

約数ペア:

[(1, 18679544), (2, 9339772), (4, 4669886), (8, 2334943), (13, 1436888), (26, 718444), (43, 434408), (52, 359222), (86, 217204), (104, 179611), (172, 108602), (344, 54301), (559, 33416), (1118, 16708), (2236, 8354), (4177, 4472)]