231931233

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 363804480

約数和(自身を除く): 131873247

約数列:

[1, 3, 9, 19, 53, 57, 157, 159, 163, 171, 471, 477, 489, 1007, 1413, 1467, 2983, 3021, 3097, 8321, 8639, 8949, 9063, 9291, 24963, 25591, 25917, 26847, 27873, 74889, 76773, 77751, 158099, 164141, 230319, 474297, 486229, 492423, 1356323, 1422891, 1458687, 1477269, 4068969, 4376061, 12206907, 25770137, 77310411, 231931233]

約数ペア:

[(1, 231931233), (3, 77310411), (9, 25770137), (19, 12206907), (53, 4376061), (57, 4068969), (157, 1477269), (159, 1458687), (163, 1422891), (171, 1356323), (471, 492423), (477, 486229), (489, 474297), (1007, 230319), (1413, 164141), (1467, 158099), (2983, 77751), (3021, 76773), (3097, 74889), (8321, 27873), (8639, 26847), (8949, 25917), (9063, 25591), (9291, 24963)]