21468780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:580

約数の個数: 96

約数和(自身を含む): 67737600

約数和(自身を除く): 46268820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 83, 90, 108, 135, 166, 180, 249, 270, 332, 415, 479, 498, 540, 747, 830, 958, 996, 1245, 1437, 1494, 1660, 1916, 2241, 2395, 2490, 2874, 2988, 3735, 4311, 4482, 4790, 4980, 5748, 7185, 7470, 8622, 8964, 9580, 11205, 12933, 14370, 14940, 17244, 21555, 22410, 25866, 28740, 39757, 43110, 44820, 51732, 64665, 79514, 86220, 119271, 129330, 159028, 198785, 238542, 258660, 357813, 397570, 477084, 596355, 715626, 795140, 1073439, 1192710, 1431252, 1789065, 2146878, 2385420, 3578130, 4293756, 5367195, 7156260, 10734390, 21468780]

約数ペア:

[(1, 21468780), (2, 10734390), (3, 7156260), (4, 5367195), (5, 4293756), (6, 3578130), (9, 2385420), (10, 2146878), (12, 1789065), (15, 1431252), (18, 1192710), (20, 1073439), (27, 795140), (30, 715626), (36, 596355), (45, 477084), (54, 397570), (60, 357813), (83, 258660), (90, 238542), (108, 198785), (135, 159028), (166, 129330), (180, 119271), (249, 86220), (270, 79514), (332, 64665), (415, 51732), (479, 44820), (498, 43110), (540, 39757), (747, 28740), (830, 25866), (958, 22410), (996, 21555), (1245, 17244), (1437, 14940), (1494, 14370), (1660, 12933), (1916, 11205), (2241, 9580), (2395, 8964), (2490, 8622), (2874, 7470), (2988, 7185), (3735, 5748), (4311, 4980), (4482, 4790)]