11979972

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 31711680

約数和(自身を除く): 19731708

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 71, 86, 109, 129, 142, 172, 213, 218, 258, 284, 327, 387, 426, 436, 516, 639, 654, 774, 852, 981, 1278, 1308, 1548, 1962, 2556, 3053, 3924, 4687, 6106, 7739, 9159, 9374, 12212, 14061, 15478, 18318, 18748, 23217, 27477, 28122, 30956, 36636, 42183, 46434, 54954, 56244, 69651, 84366, 92868, 109908, 139302, 168732, 278604, 332777, 665554, 998331, 1331108, 1996662, 2994993, 3993324, 5989986, 11979972]

約数ペア:

[(1, 11979972), (2, 5989986), (3, 3993324), (4, 2994993), (6, 1996662), (9, 1331108), (12, 998331), (18, 665554), (36, 332777), (43, 278604), (71, 168732), (86, 139302), (109, 109908), (129, 92868), (142, 84366), (172, 69651), (213, 56244), (218, 54954), (258, 46434), (284, 42183), (327, 36636), (387, 30956), (426, 28122), (436, 27477), (516, 23217), (639, 18748), (654, 18318), (774, 15478), (852, 14061), (981, 12212), (1278, 9374), (1308, 9159), (1548, 7739), (1962, 6106), (2556, 4687), (3053, 3924)]