19805643

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1399}}^1$

素因数の和:1440

約数の個数: 36

約数和(自身を含む): 33888400

約数和(自身を除く): 14082757

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 121, 143, 363, 429, 1089, 1287, 1399, 1573, 4197, 4719, 12591, 14157, 15389, 18187, 46167, 54561, 138501, 163683, 169279, 200057, 507837, 600171, 1523511, 1800513, 2200627, 6601881, 19805643]

約数ペア:

[(1, 19805643), (3, 6601881), (9, 2200627), (11, 1800513), (13, 1523511), (33, 600171), (39, 507837), (99, 200057), (117, 169279), (121, 163683), (143, 138501), (363, 54561), (429, 46167), (1089, 18187), (1287, 15389), (1399, 14157), (1573, 12591), (4197, 4719)]