17388819

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{199}}^1$

素因数の和:304

約数の個数: 48

約数和(自身を含む): 30784000

約数和(自身を除く): 13395181

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 73, 133, 171, 199, 219, 399, 511, 597, 657, 1197, 1387, 1393, 1533, 1791, 3781, 4161, 4179, 4599, 9709, 11343, 12483, 12537, 14527, 26467, 29127, 34029, 43581, 79401, 87381, 101689, 130743, 238203, 276013, 305067, 828039, 915201, 1932091, 2484117, 5796273, 17388819]

約数ペア:

[(1, 17388819), (3, 5796273), (7, 2484117), (9, 1932091), (19, 915201), (21, 828039), (57, 305067), (63, 276013), (73, 238203), (133, 130743), (171, 101689), (199, 87381), (219, 79401), (399, 43581), (511, 34029), (597, 29127), (657, 26467), (1197, 14527), (1387, 12537), (1393, 12483), (1533, 11343), (1791, 9709), (3781, 4599), (4161, 4179)]