21800889

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{131}}^1$

素因数の和:230

約数の個数: 36

約数和(自身を含む): 35480016

約数和(自身を除く): 13679127

約数列:

[1, 3, 9, 11, 33, 41, 99, 123, 131, 369, 393, 451, 1179, 1353, 1441, 1681, 4059, 4323, 5043, 5371, 12969, 15129, 16113, 18491, 48339, 55473, 59081, 166419, 177243, 220211, 531729, 660633, 1981899, 2422321, 7266963, 21800889]

約数ペア:

[(1, 21800889), (3, 7266963), (9, 2422321), (11, 1981899), (33, 660633), (41, 531729), (99, 220211), (123, 177243), (131, 166419), (369, 59081), (393, 55473), (451, 48339), (1179, 18491), (1353, 16113), (1441, 15129), (1681, 12969), (4059, 5371), (4323, 5043)]