28697942

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 57361920

約数和(自身を除く): 28663978

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 43, 86, 91, 133, 182, 193, 247, 266, 301, 386, 494, 559, 602, 817, 1118, 1351, 1634, 1729, 2509, 2702, 3458, 3667, 3913, 5018, 5719, 7334, 7826, 8299, 10621, 11438, 16598, 17563, 21242, 25669, 35126, 47671, 51338, 58093, 74347, 95342, 107887, 116186, 148694, 157681, 215774, 315362, 333697, 667394, 755209, 1103767, 1510418, 2049853, 2207534, 4099706, 14348971, 28697942]

約数ペア:

[(1, 28697942), (2, 14348971), (7, 4099706), (13, 2207534), (14, 2049853), (19, 1510418), (26, 1103767), (38, 755209), (43, 667394), (86, 333697), (91, 315362), (133, 215774), (182, 157681), (193, 148694), (247, 116186), (266, 107887), (301, 95342), (386, 74347), (494, 58093), (559, 51338), (602, 47671), (817, 35126), (1118, 25669), (1351, 21242), (1634, 17563), (1729, 16598), (2509, 11438), (2702, 10621), (3458, 8299), (3667, 7826), (3913, 7334), (5018, 5719)]