19496888

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 39730680

約数和(自身を除く): 20233792

約数列:

[1, 2, 4, 8, 19, 38, 43, 76, 86, 152, 157, 172, 314, 344, 361, 628, 722, 817, 1256, 1444, 1634, 2888, 2983, 3268, 5966, 6536, 6751, 11932, 13502, 15523, 23864, 27004, 31046, 54008, 56677, 62092, 113354, 124184, 128269, 226708, 256538, 453416, 513076, 1026152, 2437111, 4874222, 9748444, 19496888]

約数ペア:

[(1, 19496888), (2, 9748444), (4, 4874222), (8, 2437111), (19, 1026152), (38, 513076), (43, 453416), (76, 256538), (86, 226708), (152, 128269), (157, 124184), (172, 113354), (314, 62092), (344, 56677), (361, 54008), (628, 31046), (722, 27004), (817, 23864), (1256, 15523), (1444, 13502), (1634, 11932), (2888, 6751), (2983, 6536), (3268, 5966)]