20541807

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1451}}^1$

素因数の和:1492

約数の個数: 36

約数和(自身を含む): 35147112

約数和(自身を除く): 14605305

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1451, 1573, 4353, 4719, 13059, 14157, 15961, 18863, 47883, 56589, 143649, 169767, 175571, 207493, 526713, 622479, 1580139, 1867437, 2282423, 6847269, 20541807]

約数ペア:

[(1, 20541807), (3, 6847269), (9, 2282423), (11, 1867437), (13, 1580139), (33, 622479), (39, 526713), (99, 207493), (117, 175571), (121, 169767), (143, 143649), (363, 56589), (429, 47883), (1089, 18863), (1287, 15961), (1451, 14157), (1573, 13059), (4353, 4719)]