31831293

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1245

約数の個数: 32

約数和(自身を含む): 49617792

約数和(自身を除く): 17786499

約数列:

[1, 3, 13, 17, 39, 41, 51, 123, 221, 533, 663, 697, 1171, 1599, 2091, 3513, 9061, 15223, 19907, 27183, 45669, 48011, 59721, 144033, 258791, 624143, 776373, 816187, 1872429, 2448561, 10610431, 31831293]

約数ペア:

[(1, 31831293), (3, 10610431), (13, 2448561), (17, 1872429), (39, 816187), (41, 776373), (51, 624143), (123, 258791), (221, 144033), (533, 59721), (663, 48011), (697, 45669), (1171, 27183), (1599, 19907), (2091, 15223), (3513, 9061)]