20395251

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{839}}^1$

素因数の和:955

約数の個数: 24

約数和(自身を含む): 30707040

約数和(自身を除く): 10311789

約数列:

[1, 3, 9, 37, 73, 111, 219, 333, 657, 839, 2517, 2701, 7551, 8103, 24309, 31043, 61247, 93129, 183741, 279387, 551223, 2266139, 6798417, 20395251]

約数ペア:

[(1, 20395251), (3, 6798417), (9, 2266139), (37, 551223), (73, 279387), (111, 183741), (219, 93129), (333, 61247), (657, 31043), (839, 24309), (2517, 8103), (2701, 7551)]