12990978

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:149

約数の個数: 144

約数和(自身を含む): 38840256

約数和(自身を除く): 25849278

約数列:

[1, 2, 3, 6, 7, 9, 11, 13, 14, 18, 21, 22, 26, 33, 39, 42, 49, 63, 66, 77, 78, 91, 98, 99, 103, 117, 126, 143, 147, 154, 182, 198, 206, 231, 234, 273, 286, 294, 309, 429, 441, 462, 539, 546, 618, 637, 693, 721, 819, 858, 882, 927, 1001, 1078, 1133, 1274, 1287, 1339, 1386, 1442, 1617, 1638, 1854, 1911, 2002, 2163, 2266, 2574, 2678, 3003, 3234, 3399, 3822, 4017, 4326, 4851, 5047, 5733, 6006, 6489, 6798, 7007, 7931, 8034, 9009, 9373, 9702, 10094, 10197, 11466, 12051, 12978, 14014, 14729, 15141, 15862, 18018, 18746, 20394, 21021, 23793, 24102, 28119, 29458, 30282, 42042, 44187, 45423, 47586, 55517, 56238, 63063, 65611, 71379, 84357, 88374, 90846, 103103, 111034, 126126, 131222, 132561, 142758, 166551, 168714, 196833, 206206, 265122, 309309, 333102, 393666, 499653, 590499, 618618, 721721, 927927, 999306, 1180998, 1443442, 1855854, 2165163, 4330326, 6495489, 12990978]

約数ペア:

[(1, 12990978), (2, 6495489), (3, 4330326), (6, 2165163), (7, 1855854), (9, 1443442), (11, 1180998), (13, 999306), (14, 927927), (18, 721721), (21, 618618), (22, 590499), (26, 499653), (33, 393666), (39, 333102), (42, 309309), (49, 265122), (63, 206206), (66, 196833), (77, 168714), (78, 166551), (91, 142758), (98, 132561), (99, 131222), (103, 126126), (117, 111034), (126, 103103), (143, 90846), (147, 88374), (154, 84357), (182, 71379), (198, 65611), (206, 63063), (231, 56238), (234, 55517), (273, 47586), (286, 45423), (294, 44187), (309, 42042), (429, 30282), (441, 29458), (462, 28119), (539, 24102), (546, 23793), (618, 21021), (637, 20394), (693, 18746), (721, 18018), (819, 15862), (858, 15141), (882, 14729), (927, 14014), (1001, 12978), (1078, 12051), (1133, 11466), (1274, 10197), (1287, 10094), (1339, 9702), (1386, 9373), (1442, 9009), (1617, 8034), (1638, 7931), (1854, 7007), (1911, 6798), (2002, 6489), (2163, 6006), (2266, 5733), (2574, 5047), (2678, 4851), (3003, 4326), (3234, 4017), (3399, 3822)]