21131848095

素因数分解:

$3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1\times {\mathrm{63439}}^1$

素因数の和:63919

約数の個数: 32

約数和(自身を含む): 34531660800

約数和(自身を除く): 13399812705

約数列:

[1, 3, 5, 15, 53, 159, 265, 419, 795, 1257, 2095, 6285, 22207, 63439, 66621, 111035, 190317, 317195, 333105, 951585, 3362267, 10086801, 16811335, 26580941, 50434005, 79742823, 132904705, 398714115, 1408789873, 4226369619, 7043949365, 21131848095]

約数ペア:

[(1, 21131848095), (3, 7043949365), (5, 4226369619), (15, 1408789873), (53, 398714115), (159, 132904705), (265, 79742823), (419, 50434005), (795, 26580941), (1257, 16811335), (2095, 10086801), (6285, 3362267), (22207, 951585), (63439, 333105), (66621, 317195), (111035, 190317)]