25821279

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{181}}^1$

素因数の和:340

約数の個数: 36

約数和(自身を含む): 41537496

約数和(自身を除く): 15716217

約数列:

[1, 3, 9, 11, 33, 99, 121, 131, 181, 363, 393, 543, 1089, 1179, 1441, 1629, 1991, 4323, 5973, 12969, 15851, 17919, 21901, 23711, 47553, 65703, 71133, 142659, 197109, 213399, 260821, 782463, 2347389, 2869031, 8607093, 25821279]

約数ペア:

[(1, 25821279), (3, 8607093), (9, 2869031), (11, 2347389), (33, 782463), (99, 260821), (121, 213399), (131, 197109), (181, 142659), (363, 71133), (393, 65703), (543, 47553), (1089, 23711), (1179, 21901), (1441, 17919), (1629, 15851), (1991, 12969), (4323, 5973)]