28305459

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:169

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 28303821

約数列:

[1, 3, 7, 9, 13, 17, 19, 21, 39, 51, 57, 63, 91, 107, 117, 119, 133, 153, 171, 221, 247, 273, 321, 323, 357, 399, 663, 741, 749, 819, 963, 969, 1071, 1197, 1391, 1547, 1729, 1819, 1989, 2033, 2223, 2247, 2261, 2907, 4173, 4199, 4641, 5187, 5457, 6099, 6741, 6783, 9737, 12519, 12597, 12733, 13923, 14231, 15561, 16371, 18297, 20349, 23647, 26429, 29211, 29393, 34561, 37791, 38199, 42693, 70941, 79287, 87633, 88179, 103683, 114597, 128079, 165529, 185003, 212823, 237861, 241927, 264537, 311049, 449293, 496587, 555009, 725781, 1347879, 1489761, 1665027, 2177343, 3145051, 4043637, 9435153, 28305459]

約数ペア:

[(1, 28305459), (3, 9435153), (7, 4043637), (9, 3145051), (13, 2177343), (17, 1665027), (19, 1489761), (21, 1347879), (39, 725781), (51, 555009), (57, 496587), (63, 449293), (91, 311049), (107, 264537), (117, 241927), (119, 237861), (133, 212823), (153, 185003), (171, 165529), (221, 128079), (247, 114597), (273, 103683), (321, 88179), (323, 87633), (357, 79287), (399, 70941), (663, 42693), (741, 38199), (749, 37791), (819, 34561), (963, 29393), (969, 29211), (1071, 26429), (1197, 23647), (1391, 20349), (1547, 18297), (1729, 16371), (1819, 15561), (1989, 14231), (2033, 13923), (2223, 12733), (2247, 12597), (2261, 12519), (2907, 9737), (4173, 6783), (4199, 6741), (4641, 6099), (5187, 5457)]