11671947

素因数分解:

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

素因数の和:245

約数の個数: 48

約数和(自身を含む): 20800000

約数和(自身を除く): 9128053

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 199, 343, 399, 441, 597, 931, 1029, 1197, 1393, 1791, 2793, 3087, 3781, 4179, 6517, 8379, 9751, 11343, 12537, 19551, 26467, 29253, 34029, 58653, 68257, 79401, 87759, 185269, 204771, 238203, 555807, 614313, 1296883, 1667421, 3890649, 11671947]

約数ペア:

[(1, 11671947), (3, 3890649), (7, 1667421), (9, 1296883), (19, 614313), (21, 555807), (49, 238203), (57, 204771), (63, 185269), (133, 87759), (147, 79401), (171, 68257), (199, 58653), (343, 34029), (399, 29253), (441, 26467), (597, 19551), (931, 12537), (1029, 11343), (1197, 9751), (1393, 8379), (1791, 6517), (2793, 4179), (3087, 3781)]