20570655

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{479}}^1$

素因数の和:903

約数の個数: 32

約数和(自身を含む): 37785600

約数和(自身を除く): 17214945

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 409, 479, 1227, 1437, 2045, 2395, 2863, 3353, 6135, 7185, 8589, 10059, 14315, 16765, 42945, 50295, 195911, 587733, 979555, 1371377, 2938665, 4114131, 6856885, 20570655]

約数ペア:

[(1, 20570655), (3, 6856885), (5, 4114131), (7, 2938665), (15, 1371377), (21, 979555), (35, 587733), (105, 195911), (409, 50295), (479, 42945), (1227, 16765), (1437, 14315), (2045, 10059), (2395, 8589), (2863, 7185), (3353, 6135)]