20192787

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:133

約数の個数: 64

約数和(自身を含む): 34473600

約数和(自身を除く): 14280813

約数列:

[1, 3, 9, 17, 27, 29, 37, 41, 51, 87, 111, 123, 153, 261, 333, 369, 459, 493, 629, 697, 783, 999, 1073, 1107, 1189, 1479, 1517, 1887, 2091, 3219, 3567, 4437, 4551, 5661, 6273, 9657, 10701, 13311, 13653, 16983, 18241, 18819, 20213, 25789, 28971, 32103, 40959, 43993, 54723, 60639, 77367, 131979, 164169, 181917, 232101, 395937, 492507, 545751, 696303, 747881, 1187811, 2243643, 6730929, 20192787]

約数ペア:

[(1, 20192787), (3, 6730929), (9, 2243643), (17, 1187811), (27, 747881), (29, 696303), (37, 545751), (41, 492507), (51, 395937), (87, 232101), (111, 181917), (123, 164169), (153, 131979), (261, 77367), (333, 60639), (369, 54723), (459, 43993), (493, 40959), (629, 32103), (697, 28971), (783, 25789), (999, 20213), (1073, 18819), (1107, 18241), (1189, 16983), (1479, 13653), (1517, 13311), (1887, 10701), (2091, 9657), (3219, 6273), (3567, 5661), (4437, 4551)]