20823705

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66107}}^1$

素因数の和:66125

約数の個数: 24

約数和(自身を含む): 41251392

約数和(自身を除く): 20427687

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66107, 198321, 330535, 462749, 594963, 991605, 1388247, 2313745, 2974815, 4164741, 6941235, 20823705]

約数ペア:

[(1, 20823705), (3, 6941235), (5, 4164741), (7, 2974815), (9, 2313745), (15, 1388247), (21, 991605), (35, 594963), (45, 462749), (63, 330535), (105, 198321), (315, 66107)]