19492803

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{241}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 33221760

約数和(自身を除く): 13728957

約数列:

[1, 3, 9, 11, 19, 33, 43, 57, 99, 129, 171, 209, 241, 387, 473, 627, 723, 817, 1419, 1881, 2169, 2451, 2651, 4257, 4579, 7353, 7953, 8987, 10363, 13737, 23859, 26961, 31089, 41211, 50369, 80883, 93267, 113993, 151107, 196897, 341979, 453321, 590691, 1025937, 1772073, 2165867, 6497601, 19492803]

約数ペア:

[(1, 19492803), (3, 6497601), (9, 2165867), (11, 1772073), (19, 1025937), (33, 590691), (43, 453321), (57, 341979), (99, 196897), (129, 151107), (171, 113993), (209, 93267), (241, 80883), (387, 50369), (473, 41211), (627, 31089), (723, 26961), (817, 23859), (1419, 13737), (1881, 10363), (2169, 8987), (2451, 7953), (2651, 7353), (4257, 4579)]