638561643

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{971}}^1\times {\mathrm{7559}}^1$

素因数の和:8562

約数の個数: 16

約数和(自身を含む): 881798400

約数和(自身を除く): 243236757

約数列:

[1, 3, 29, 87, 971, 2913, 7559, 22677, 28159, 84477, 219211, 657633, 7339789, 22019367, 212853881, 638561643]

約数ペア:

[(1, 638561643), (3, 212853881), (29, 22019367), (87, 7339789), (971, 657633), (2913, 219211), (7559, 84477), (22677, 28159)]