19902189

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 9646611

約数列:

[1, 3, 17, 37, 51, 53, 111, 159, 199, 597, 629, 901, 1887, 1961, 2703, 3383, 5883, 7363, 10149, 10547, 22089, 31641, 33337, 100011, 125171, 179299, 375513, 390239, 537897, 1170717, 6634063, 19902189]

約数ペア:

[(1, 19902189), (3, 6634063), (17, 1170717), (37, 537897), (51, 390239), (53, 375513), (111, 179299), (159, 125171), (199, 100011), (597, 33337), (629, 31641), (901, 22089), (1887, 10547), (1961, 10149), (2703, 7363), (3383, 5883)]