2589111

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 4742400

約数和(自身を除く): 2153289

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 103, 133, 147, 171, 189, 309, 399, 441, 513, 721, 927, 931, 1197, 1323, 1957, 2163, 2781, 2793, 3591, 5047, 5871, 6489, 8379, 13699, 15141, 17613, 19467, 25137, 41097, 45423, 52839, 95893, 123291, 136269, 287679, 369873, 863037, 2589111]

約数ペア:

[(1, 2589111), (3, 863037), (7, 369873), (9, 287679), (19, 136269), (21, 123291), (27, 95893), (49, 52839), (57, 45423), (63, 41097), (103, 25137), (133, 19467), (147, 17613), (171, 15141), (189, 13699), (309, 8379), (399, 6489), (441, 5871), (513, 5047), (721, 3591), (927, 2793), (931, 2781), (1197, 2163), (1323, 1957)]