21206976

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:562

約数の個数: 112

約数和(自身を含む): 66324480

約数和(自身を除く): 45117504

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 64, 84, 93, 96, 112, 124, 168, 186, 192, 217, 224, 248, 336, 372, 434, 448, 496, 509, 651, 672, 744, 868, 992, 1018, 1302, 1344, 1488, 1527, 1736, 1984, 2036, 2604, 2976, 3054, 3472, 3563, 4072, 5208, 5952, 6108, 6944, 7126, 8144, 10416, 10689, 12216, 13888, 14252, 15779, 16288, 20832, 21378, 24432, 28504, 31558, 32576, 41664, 42756, 47337, 48864, 57008, 63116, 85512, 94674, 97728, 110453, 114016, 126232, 171024, 189348, 220906, 228032, 252464, 331359, 342048, 378696, 441812, 504928, 662718, 684096, 757392, 883624, 1009856, 1325436, 1514784, 1767248, 2650872, 3029568, 3534496, 5301744, 7068992, 10603488, 21206976]

約数ペア:

[(1, 21206976), (2, 10603488), (3, 7068992), (4, 5301744), (6, 3534496), (7, 3029568), (8, 2650872), (12, 1767248), (14, 1514784), (16, 1325436), (21, 1009856), (24, 883624), (28, 757392), (31, 684096), (32, 662718), (42, 504928), (48, 441812), (56, 378696), (62, 342048), (64, 331359), (84, 252464), (93, 228032), (96, 220906), (112, 189348), (124, 171024), (168, 126232), (186, 114016), (192, 110453), (217, 97728), (224, 94674), (248, 85512), (336, 63116), (372, 57008), (434, 48864), (448, 47337), (496, 42756), (509, 41664), (651, 32576), (672, 31558), (744, 28504), (868, 24432), (992, 21378), (1018, 20832), (1302, 16288), (1344, 15779), (1488, 14252), (1527, 13888), (1736, 12216), (1984, 10689), (2036, 10416), (2604, 8144), (2976, 7126), (3054, 6944), (3472, 6108), (3563, 5952), (4072, 5208)]