20288445

素因数分解:

$3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3307}}^1$

素因数の和:3724

約数の個数: 16

約数和(自身を含む): 32550720

約数和(自身を除く): 12262275

約数列:

[1, 3, 5, 15, 409, 1227, 2045, 3307, 6135, 9921, 16535, 49605, 1352563, 4057689, 6762815, 20288445]

約数ペア:

[(1, 20288445), (3, 6762815), (5, 4057689), (15, 1352563), (409, 49605), (1227, 16535), (2045, 9921), (3307, 6135)]