20935485

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3347}}^1$

素因数の和:3497

約数の個数: 24

約数和(自身を含む): 36560160

約数和(自身を除く): 15624675

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3347, 6255, 10041, 16735, 30123, 50205, 150615, 465233, 1395699, 2326165, 4187097, 6978495, 20935485]

約数ペア:

[(1, 20935485), (3, 6978495), (5, 4187097), (9, 2326165), (15, 1395699), (45, 465233), (139, 150615), (417, 50205), (695, 30123), (1251, 16735), (2085, 10041), (3347, 6255)]