21517128

素因数分解:

$2^3\times 3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 61621560

約数和(自身を除く): 40104432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 37, 41, 72, 74, 82, 111, 123, 148, 164, 197, 222, 246, 296, 328, 333, 369, 394, 444, 492, 591, 666, 738, 788, 888, 984, 1182, 1332, 1476, 1517, 1576, 1773, 2364, 2664, 2952, 3034, 3546, 4551, 4728, 6068, 7092, 7289, 8077, 9102, 12136, 13653, 14184, 14578, 16154, 18204, 21867, 24231, 27306, 29156, 32308, 36408, 43734, 48462, 54612, 58312, 64616, 65601, 72693, 87468, 96924, 109224, 131202, 145386, 174936, 193848, 262404, 290772, 298849, 524808, 581544, 597698, 896547, 1195396, 1793094, 2390792, 2689641, 3586188, 5379282, 7172376, 10758564, 21517128]

約数ペア:

[(1, 21517128), (2, 10758564), (3, 7172376), (4, 5379282), (6, 3586188), (8, 2689641), (9, 2390792), (12, 1793094), (18, 1195396), (24, 896547), (36, 597698), (37, 581544), (41, 524808), (72, 298849), (74, 290772), (82, 262404), (111, 193848), (123, 174936), (148, 145386), (164, 131202), (197, 109224), (222, 96924), (246, 87468), (296, 72693), (328, 65601), (333, 64616), (369, 58312), (394, 54612), (444, 48462), (492, 43734), (591, 36408), (666, 32308), (738, 29156), (788, 27306), (888, 24231), (984, 21867), (1182, 18204), (1332, 16154), (1476, 14578), (1517, 14184), (1576, 13653), (1773, 12136), (2364, 9102), (2664, 8077), (2952, 7289), (3034, 7092), (3546, 6068), (4551, 4728)]