20681085

素因数分解:

$3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{3371}}^1$

素因数の和:3788

約数の個数: 16

約数和(自身を含む): 33180480

約数和(自身を除く): 12499395

約数列:

[1, 3, 5, 15, 409, 1227, 2045, 3371, 6135, 10113, 16855, 50565, 1378739, 4136217, 6893695, 20681085]

約数ペア:

[(1, 20681085), (3, 6893695), (5, 4136217), (15, 1378739), (409, 50565), (1227, 16855), (2045, 10113), (3371, 6135)]