19703817

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 80

約数和(自身を含む): 37171200

約数和(自身を除く): 17467383

約数列:

[1, 3, 7, 9, 19, 21, 27, 31, 57, 59, 63, 81, 93, 133, 171, 177, 189, 217, 279, 399, 413, 513, 531, 567, 589, 651, 837, 1121, 1197, 1239, 1539, 1593, 1767, 1829, 1953, 2511, 3363, 3591, 3717, 4123, 4779, 5301, 5487, 5859, 7847, 10089, 10773, 11151, 12369, 12803, 15903, 16461, 17577, 23541, 30267, 33453, 34751, 37107, 38409, 47709, 49383, 70623, 90801, 104253, 111321, 115227, 148149, 211869, 243257, 312759, 333963, 345681, 635607, 729771, 938277, 1037043, 2189313, 2814831, 6567939, 19703817]

約数ペア:

[(1, 19703817), (3, 6567939), (7, 2814831), (9, 2189313), (19, 1037043), (21, 938277), (27, 729771), (31, 635607), (57, 345681), (59, 333963), (63, 312759), (81, 243257), (93, 211869), (133, 148149), (171, 115227), (177, 111321), (189, 104253), (217, 90801), (279, 70623), (399, 49383), (413, 47709), (513, 38409), (531, 37107), (567, 34751), (589, 33453), (651, 30267), (837, 23541), (1121, 17577), (1197, 16461), (1239, 15903), (1539, 12803), (1593, 12369), (1767, 11151), (1829, 10773), (1953, 10089), (2511, 7847), (3363, 5859), (3591, 5487), (3717, 5301), (4123, 4779)]