28985187

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 64

約数和(自身を含む): 52282368

約数和(自身を除く): 23297181

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 61, 77, 119, 121, 183, 187, 231, 357, 363, 427, 561, 671, 847, 1037, 1281, 1309, 1331, 2013, 2057, 2541, 3111, 3927, 3993, 4697, 6171, 7259, 7381, 9317, 11407, 14091, 14399, 21777, 22143, 22627, 27951, 34221, 43197, 51667, 67881, 79849, 81191, 125477, 155001, 158389, 239547, 243573, 376431, 475167, 568337, 878339, 1380247, 1705011, 2635017, 4140741, 9661729, 28985187]

約数ペア:

[(1, 28985187), (3, 9661729), (7, 4140741), (11, 2635017), (17, 1705011), (21, 1380247), (33, 878339), (51, 568337), (61, 475167), (77, 376431), (119, 243573), (121, 239547), (183, 158389), (187, 155001), (231, 125477), (357, 81191), (363, 79849), (427, 67881), (561, 51667), (671, 43197), (847, 34221), (1037, 27951), (1281, 22627), (1309, 22143), (1331, 21777), (2013, 14399), (2057, 14091), (2541, 11407), (3111, 9317), (3927, 7381), (3993, 7259), (4697, 6171)]