19741644

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 57392720

約数和(自身を除く): 37651076

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 81, 86, 108, 109, 117, 129, 156, 162, 172, 218, 234, 258, 324, 327, 351, 387, 436, 468, 516, 559, 654, 702, 774, 981, 1053, 1118, 1161, 1308, 1404, 1417, 1548, 1677, 1962, 2106, 2236, 2322, 2834, 2943, 3354, 3483, 3924, 4212, 4251, 4644, 4687, 5031, 5668, 5886, 6708, 6966, 8502, 8829, 9374, 10062, 11772, 12753, 13932, 14061, 15093, 17004, 17658, 18748, 20124, 25506, 28122, 30186, 35316, 38259, 42183, 45279, 51012, 56244, 60372, 60931, 76518, 84366, 90558, 114777, 121862, 126549, 153036, 168732, 181116, 182793, 229554, 243724, 253098, 365586, 379647, 459108, 506196, 548379, 731172, 759294, 1096758, 1518588, 1645137, 2193516, 3290274, 4935411, 6580548, 9870822, 19741644]

約数ペア:

[(1, 19741644), (2, 9870822), (3, 6580548), (4, 4935411), (6, 3290274), (9, 2193516), (12, 1645137), (13, 1518588), (18, 1096758), (26, 759294), (27, 731172), (36, 548379), (39, 506196), (43, 459108), (52, 379647), (54, 365586), (78, 253098), (81, 243724), (86, 229554), (108, 182793), (109, 181116), (117, 168732), (129, 153036), (156, 126549), (162, 121862), (172, 114777), (218, 90558), (234, 84366), (258, 76518), (324, 60931), (327, 60372), (351, 56244), (387, 51012), (436, 45279), (468, 42183), (516, 38259), (559, 35316), (654, 30186), (702, 28122), (774, 25506), (981, 20124), (1053, 18748), (1118, 17658), (1161, 17004), (1308, 15093), (1404, 14061), (1417, 13932), (1548, 12753), (1677, 11772), (1962, 10062), (2106, 9374), (2236, 8829), (2322, 8502), (2834, 6966), (2943, 6708), (3354, 5886), (3483, 5668), (3924, 5031), (4212, 4687), (4251, 4644)]