81185247

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 146686848

約数和(自身を除く): 65501601

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 43, 81, 99, 117, 129, 143, 163, 297, 351, 387, 429, 473, 489, 559, 891, 1053, 1161, 1287, 1419, 1467, 1677, 1793, 2119, 3483, 3861, 4257, 4401, 5031, 5379, 6149, 6357, 7009, 11583, 12771, 13203, 15093, 16137, 18447, 19071, 21027, 23309, 38313, 45279, 48411, 55341, 57213, 63081, 69927, 77099, 91117, 145233, 166023, 171639, 189243, 209781, 231297, 273351, 498069, 567729, 629343, 693891, 820053, 1002287, 1888029, 2081673, 2460159, 3006861, 6245019, 7380477, 9020583, 27061749, 81185247]

約数ペア:

[(1, 81185247), (3, 27061749), (9, 9020583), (11, 7380477), (13, 6245019), (27, 3006861), (33, 2460159), (39, 2081673), (43, 1888029), (81, 1002287), (99, 820053), (117, 693891), (129, 629343), (143, 567729), (163, 498069), (297, 273351), (351, 231297), (387, 209781), (429, 189243), (473, 171639), (489, 166023), (559, 145233), (891, 91117), (1053, 77099), (1161, 69927), (1287, 63081), (1419, 57213), (1467, 55341), (1677, 48411), (1793, 45279), (2119, 38313), (3483, 23309), (3861, 21027), (4257, 19071), (4401, 18447), (5031, 16137), (5379, 15093), (6149, 13203), (6357, 12771), (7009, 11583)]