20994831

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1483}}^1$

素因数の和:1524

約数の個数: 36

約数和(自身を含む): 35921704

約数和(自身を除く): 14926873

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1483, 1573, 4449, 4719, 13347, 14157, 16313, 19279, 48939, 57837, 146817, 173511, 179443, 212069, 538329, 636207, 1614987, 1908621, 2332759, 6998277, 20994831]

約数ペア:

[(1, 20994831), (3, 6998277), (9, 2332759), (11, 1908621), (13, 1614987), (33, 636207), (39, 538329), (99, 212069), (117, 179443), (121, 173511), (143, 146817), (363, 57837), (429, 48939), (1089, 19279), (1287, 16313), (1483, 14157), (1573, 13347), (4449, 4719)]