11571399

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1420

約数の個数: 36

約数和(自身を含む): 20481240

約数和(自身を除く): 8909841

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 1381, 2793, 4143, 8379, 9667, 12429, 26239, 29001, 67669, 78717, 87003, 183673, 203007, 236151, 551019, 609021, 1285711, 1653057, 3857133, 11571399]

約数ペア:

[(1, 11571399), (3, 3857133), (7, 1653057), (9, 1285711), (19, 609021), (21, 551019), (49, 236151), (57, 203007), (63, 183673), (133, 87003), (147, 78717), (171, 67669), (399, 29001), (441, 26239), (931, 12429), (1197, 9667), (1381, 8379), (2793, 4143)]