19837792

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1109}}^1$

素因数の和:1175

約数の個数: 48

約数和(自身を含む): 43076880

約数和(自身を除く): 23239088

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1109, 1118, 1376, 2218, 2236, 4436, 4472, 8872, 8944, 14417, 17744, 17888, 28834, 35488, 47687, 57668, 95374, 115336, 190748, 230672, 381496, 461344, 619931, 762992, 1239862, 1525984, 2479724, 4959448, 9918896, 19837792]

約数ペア:

[(1, 19837792), (2, 9918896), (4, 4959448), (8, 2479724), (13, 1525984), (16, 1239862), (26, 762992), (32, 619931), (43, 461344), (52, 381496), (86, 230672), (104, 190748), (172, 115336), (208, 95374), (344, 57668), (416, 47687), (559, 35488), (688, 28834), (1109, 17888), (1118, 17744), (1376, 14417), (2218, 8944), (2236, 8872), (4436, 4472)]