18843417

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:174

約数の個数: 48

約数和(自身を含む): 30476160

約数和(自身を除く): 11632743

約数列:

[1, 3, 9, 23, 29, 43, 69, 73, 87, 129, 207, 219, 261, 387, 657, 667, 989, 1247, 1679, 2001, 2117, 2967, 3139, 3741, 5037, 6003, 6351, 8901, 9417, 11223, 15111, 19053, 28251, 28681, 48691, 72197, 86043, 91031, 146073, 216591, 258129, 273093, 438219, 649773, 819279, 2093713, 6281139, 18843417]

約数ペア:

[(1, 18843417), (3, 6281139), (9, 2093713), (23, 819279), (29, 649773), (43, 438219), (69, 273093), (73, 258129), (87, 216591), (129, 146073), (207, 91031), (219, 86043), (261, 72197), (387, 48691), (657, 28681), (667, 28251), (989, 19053), (1247, 15111), (1679, 11223), (2001, 9417), (2117, 8901), (2967, 6351), (3139, 6003), (3741, 5037)]