81304443

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 133436160

約数和(自身を除く): 52131717

約数列:

[1, 3, 9, 11, 33, 43, 71, 99, 129, 213, 269, 387, 473, 639, 781, 807, 1419, 2343, 2421, 2959, 3053, 4257, 7029, 8877, 9159, 11567, 19099, 26631, 27477, 33583, 34701, 57297, 100749, 104103, 127237, 171891, 210089, 302247, 381711, 630267, 821257, 1145133, 1890801, 2463771, 7391313, 9033827, 27101481, 81304443]

約数ペア:

[(1, 81304443), (3, 27101481), (9, 9033827), (11, 7391313), (33, 2463771), (43, 1890801), (71, 1145133), (99, 821257), (129, 630267), (213, 381711), (269, 302247), (387, 210089), (473, 171891), (639, 127237), (781, 104103), (807, 100749), (1419, 57297), (2343, 34701), (2421, 33583), (2959, 27477), (3053, 26631), (4257, 19099), (7029, 11567), (8877, 9159)]