19605807

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:501

約数の個数: 40

約数和(自身を含む): 32348624

約数和(自身を除く): 12742817

約数列:

[1, 3, 9, 13, 27, 39, 43, 81, 117, 129, 351, 387, 433, 559, 1053, 1161, 1299, 1677, 3483, 3897, 5031, 5629, 11691, 15093, 16887, 18619, 35073, 45279, 50661, 55857, 151983, 167571, 242047, 455949, 502713, 726141, 1508139, 2178423, 6535269, 19605807]

約数ペア:

[(1, 19605807), (3, 6535269), (9, 2178423), (13, 1508139), (27, 726141), (39, 502713), (43, 455949), (81, 242047), (117, 167571), (129, 151983), (351, 55857), (387, 50661), (433, 45279), (559, 35073), (1053, 18619), (1161, 16887), (1299, 15093), (1677, 11691), (3483, 5629), (3897, 5031)]