28981449

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 23549751

約数列:

[1, 3, 7, 9, 21, 23, 27, 59, 63, 69, 113, 161, 177, 189, 207, 339, 413, 483, 531, 621, 791, 1017, 1239, 1357, 1449, 1593, 2373, 2599, 3051, 3717, 4071, 4347, 6667, 7119, 7797, 9499, 11151, 12213, 18193, 20001, 21357, 23391, 28497, 36639, 46669, 54579, 60003, 70173, 85491, 140007, 153341, 163737, 180009, 256473, 420021, 460023, 491211, 1073387, 1260063, 1380069, 3220161, 4140207, 9660483, 28981449]

約数ペア:

[(1, 28981449), (3, 9660483), (7, 4140207), (9, 3220161), (21, 1380069), (23, 1260063), (27, 1073387), (59, 491211), (63, 460023), (69, 420021), (113, 256473), (161, 180009), (177, 163737), (189, 153341), (207, 140007), (339, 85491), (413, 70173), (483, 60003), (531, 54579), (621, 46669), (791, 36639), (1017, 28497), (1239, 23391), (1357, 21357), (1449, 20001), (1593, 18193), (2373, 12213), (2599, 11151), (3051, 9499), (3717, 7797), (4071, 7119), (4347, 6667)]