12821085

素因数分解:

$3^4\times 5^1\times {\mathrm{31657}}^1$

素因数の和:31674

約数の個数: 20

約数和(自身を含む): 22983708

約数和(自身を除く): 10162623

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 31657, 94971, 158285, 284913, 474855, 854739, 1424565, 2564217, 4273695, 12821085]

約数ペア:

[(1, 12821085), (3, 4273695), (5, 2564217), (9, 1424565), (15, 854739), (27, 474855), (45, 284913), (81, 158285), (135, 94971), (405, 31657)]