28828719

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 47623680

約数和(自身を除く): 18794961

約数列:

[1, 3, 9, 17, 19, 47, 51, 57, 141, 153, 171, 211, 323, 423, 633, 799, 893, 969, 1899, 2397, 2679, 2907, 3587, 4009, 7191, 8037, 9917, 10761, 12027, 15181, 29751, 32283, 36081, 45543, 68153, 89253, 136629, 168589, 188423, 204459, 505767, 565269, 613377, 1517301, 1695807, 3203191, 9609573, 28828719]

約数ペア:

[(1, 28828719), (3, 9609573), (9, 3203191), (17, 1695807), (19, 1517301), (47, 613377), (51, 565269), (57, 505767), (141, 204459), (153, 188423), (171, 168589), (211, 136629), (323, 89253), (423, 68153), (633, 45543), (799, 36081), (893, 32283), (969, 29751), (1899, 15181), (2397, 12027), (2679, 10761), (2907, 9917), (3587, 8037), (4009, 7191)]