2898987

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:108

約数の個数: 48

約数和(自身を含む): 5094432

約数和(自身を除く): 2195445

約数列:

[1, 3, 7, 13, 21, 37, 39, 41, 49, 91, 111, 123, 147, 259, 273, 287, 481, 533, 637, 777, 861, 1443, 1517, 1599, 1813, 1911, 2009, 3367, 3731, 4551, 5439, 6027, 10101, 10619, 11193, 19721, 23569, 26117, 31857, 59163, 70707, 74333, 78351, 138047, 222999, 414141, 966329, 2898987]

約数ペア:

[(1, 2898987), (3, 966329), (7, 414141), (13, 222999), (21, 138047), (37, 78351), (39, 74333), (41, 70707), (49, 59163), (91, 31857), (111, 26117), (123, 23569), (147, 19721), (259, 11193), (273, 10619), (287, 10101), (481, 6027), (533, 5439), (637, 4551), (777, 3731), (861, 3367), (1443, 2009), (1517, 1911), (1599, 1813)]