21082347

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{16381}}^1$

素因数の和:16411

約数の個数: 24

約数和(自身を含む): 35778288

約数和(自身を除く): 14695941

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 16381, 49143, 147429, 180191, 212953, 540573, 638859, 1621719, 1916577, 2342483, 7027449, 21082347]

約数ペア:

[(1, 21082347), (3, 7027449), (9, 2342483), (11, 1916577), (13, 1621719), (33, 638859), (39, 540573), (99, 212953), (117, 180191), (143, 147429), (429, 49143), (1287, 16381)]