18617409

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{659}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 27936480

約数和(自身を除く): 9319071

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 659, 1977, 3139, 5931, 9417, 28251, 28337, 48107, 85011, 144321, 255033, 432963, 2068601, 6205803, 18617409]

約数ペア:

[(1, 18617409), (3, 6205803), (9, 2068601), (43, 432963), (73, 255033), (129, 144321), (219, 85011), (387, 48107), (657, 28337), (659, 28251), (1977, 9417), (3139, 5931)]