201291111

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{499}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 351520000

約数和(自身を除く): 150228889

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 337, 399, 499, 1011, 1197, 1497, 2359, 3033, 3493, 4491, 6403, 7077, 9481, 10479, 19209, 21231, 28443, 31437, 44821, 57627, 66367, 85329, 134463, 168163, 199101, 403389, 504489, 597303, 1177141, 1513467, 3195097, 3531423, 9585291, 10594269, 22365679, 28755873, 67097037, 201291111]

約数ペア:

[(1, 201291111), (3, 67097037), (7, 28755873), (9, 22365679), (19, 10594269), (21, 9585291), (57, 3531423), (63, 3195097), (133, 1513467), (171, 1177141), (337, 597303), (399, 504489), (499, 403389), (1011, 199101), (1197, 168163), (1497, 134463), (2359, 85329), (3033, 66367), (3493, 57627), (4491, 44821), (6403, 31437), (7077, 28443), (9481, 21231), (10479, 19209)]