21240930848

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1\times {\mathrm{617}}^1$

素因数の和:994

約数の個数: 96

約数和(自身を含む): 43416705024

約数和(自身を除く): 22175774176

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 127, 172, 197, 254, 344, 394, 508, 617, 688, 788, 1016, 1234, 1376, 1576, 2032, 2468, 3152, 4064, 4936, 5461, 6304, 8471, 9872, 10922, 16942, 19744, 21844, 25019, 26531, 33884, 43688, 50038, 53062, 67768, 78359, 87376, 100076, 106124, 121549, 135536, 156718, 174752, 200152, 212248, 243098, 271072, 313436, 400304, 424496, 486196, 626872, 800608, 848992, 972392, 1075817, 1253744, 1944784, 2151634, 2507488, 3369437, 3889568, 4303268, 5226607, 6738874, 8606536, 10453214, 13477748, 15436723, 17213072, 20906428, 26955496, 30873446, 34426144, 41812856, 53910992, 61746892, 83625712, 107821984, 123493784, 167251424, 246987568, 493975136, 663779089, 1327558178, 2655116356, 5310232712, 10620465424, 21240930848]

約数ペア:

[(1, 21240930848), (2, 10620465424), (4, 5310232712), (8, 2655116356), (16, 1327558178), (32, 663779089), (43, 493975136), (86, 246987568), (127, 167251424), (172, 123493784), (197, 107821984), (254, 83625712), (344, 61746892), (394, 53910992), (508, 41812856), (617, 34426144), (688, 30873446), (788, 26955496), (1016, 20906428), (1234, 17213072), (1376, 15436723), (1576, 13477748), (2032, 10453214), (2468, 8606536), (3152, 6738874), (4064, 5226607), (4936, 4303268), (5461, 3889568), (6304, 3369437), (8471, 2507488), (9872, 2151634), (10922, 1944784), (16942, 1253744), (19744, 1075817), (21844, 972392), (25019, 848992), (26531, 800608), (33884, 626872), (43688, 486196), (50038, 424496), (53062, 400304), (67768, 313436), (78359, 271072), (87376, 243098), (100076, 212248), (106124, 200152), (121549, 174752), (135536, 156718)]