21435147

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4831}}^1$

素因数の和:4883

約数の個数: 24

約数和(自身を含む): 33920640

約数和(自身を除く): 12485493

約数列:

[1, 3, 9, 17, 29, 51, 87, 153, 261, 493, 1479, 4437, 4831, 14493, 43479, 82127, 140099, 246381, 420297, 739143, 1260891, 2381683, 7145049, 21435147]

約数ペア:

[(1, 21435147), (3, 7145049), (9, 2381683), (17, 1260891), (29, 739143), (51, 420297), (87, 246381), (153, 140099), (261, 82127), (493, 43479), (1479, 14493), (4437, 4831)]