20811285

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42043}}^1$

素因数の和:42065

約数の個数: 24

約数和(自身を含む): 39353184

約数和(自身を除く): 18541899

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 42043, 126129, 210215, 378387, 462473, 630645, 1387419, 1891935, 2312365, 4162257, 6937095, 20811285]

約数ペア:

[(1, 20811285), (3, 6937095), (5, 4162257), (9, 2312365), (11, 1891935), (15, 1387419), (33, 630645), (45, 462473), (55, 378387), (99, 210215), (165, 126129), (495, 42043)]