28665791

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 38568960

約数和(自身を除く): 9903169

約数列:

[1, 7, 11, 17, 61, 77, 119, 187, 359, 427, 671, 1037, 1309, 2513, 3949, 4697, 6103, 7259, 11407, 21899, 27643, 42721, 67133, 79849, 153293, 240889, 372283, 469931, 1686223, 2605981, 4095113, 28665791]

約数ペア:

[(1, 28665791), (7, 4095113), (11, 2605981), (17, 1686223), (61, 469931), (77, 372283), (119, 240889), (187, 153293), (359, 79849), (427, 67133), (671, 42721), (1037, 27643), (1309, 21899), (2513, 11407), (3949, 7259), (4697, 6103)]