18716049

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:143

約数の個数: 64

約数和(自身を含む): 32659200

約数和(自身を除く): 13943151

約数列:

[1, 3, 9, 11, 27, 29, 33, 41, 53, 87, 99, 123, 159, 261, 297, 319, 369, 451, 477, 583, 783, 957, 1107, 1189, 1353, 1431, 1537, 1749, 2173, 2871, 3567, 4059, 4611, 5247, 6519, 8613, 10701, 12177, 13079, 13833, 15741, 16907, 19557, 23903, 32103, 39237, 41499, 50721, 58671, 63017, 71709, 117711, 152163, 189051, 215127, 353133, 456489, 567153, 645381, 693187, 1701459, 2079561, 6238683, 18716049]

約数ペア:

[(1, 18716049), (3, 6238683), (9, 2079561), (11, 1701459), (27, 693187), (29, 645381), (33, 567153), (41, 456489), (53, 353133), (87, 215127), (99, 189051), (123, 152163), (159, 117711), (261, 71709), (297, 63017), (319, 58671), (369, 50721), (451, 41499), (477, 39237), (583, 32103), (783, 23903), (957, 19557), (1107, 16907), (1189, 15741), (1353, 13833), (1431, 13079), (1537, 12177), (1749, 10701), (2173, 8613), (2871, 6519), (3567, 5247), (4059, 4611)]