28790289

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1$

素因数の和:163

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 20976111

約数列:

[1, 3, 9, 11, 27, 31, 33, 53, 59, 93, 99, 159, 177, 279, 297, 341, 477, 531, 583, 649, 837, 1023, 1431, 1593, 1643, 1749, 1829, 1947, 3069, 3127, 4929, 5247, 5487, 5841, 9207, 9381, 14787, 15741, 16461, 17523, 18073, 20119, 28143, 34397, 44361, 49383, 54219, 60357, 84429, 96937, 103191, 162657, 181071, 290811, 309573, 487971, 543213, 872433, 928719, 1066307, 2617299, 3198921, 9596763, 28790289]

約数ペア:

[(1, 28790289), (3, 9596763), (9, 3198921), (11, 2617299), (27, 1066307), (31, 928719), (33, 872433), (53, 543213), (59, 487971), (93, 309573), (99, 290811), (159, 181071), (177, 162657), (279, 103191), (297, 96937), (341, 84429), (477, 60357), (531, 54219), (583, 49383), (649, 44361), (837, 34397), (1023, 28143), (1431, 20119), (1593, 18073), (1643, 17523), (1749, 16461), (1829, 15741), (1947, 14787), (3069, 9381), (3127, 9207), (4929, 5841), (5247, 5487)]