21280512

素因数分解:

$2^8\times 3^1\times {\mathrm{11}}^2\times {\mathrm{229}}^1$

素因数の和:270

約数の個数: 108

約数和(自身を含む): 62525960

約数和(自身を除く): 41245448

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 64, 66, 88, 96, 121, 128, 132, 176, 192, 229, 242, 256, 264, 352, 363, 384, 458, 484, 528, 687, 704, 726, 768, 916, 968, 1056, 1374, 1408, 1452, 1832, 1936, 2112, 2519, 2748, 2816, 2904, 3664, 3872, 4224, 5038, 5496, 5808, 7328, 7557, 7744, 8448, 10076, 10992, 11616, 14656, 15114, 15488, 20152, 21984, 23232, 27709, 29312, 30228, 30976, 40304, 43968, 46464, 55418, 58624, 60456, 80608, 83127, 87936, 92928, 110836, 120912, 161216, 166254, 175872, 221672, 241824, 322432, 332508, 443344, 483648, 644864, 665016, 886688, 967296, 1330032, 1773376, 1934592, 2660064, 3546752, 5320128, 7093504, 10640256, 21280512]

約数ペア:

[(1, 21280512), (2, 10640256), (3, 7093504), (4, 5320128), (6, 3546752), (8, 2660064), (11, 1934592), (12, 1773376), (16, 1330032), (22, 967296), (24, 886688), (32, 665016), (33, 644864), (44, 483648), (48, 443344), (64, 332508), (66, 322432), (88, 241824), (96, 221672), (121, 175872), (128, 166254), (132, 161216), (176, 120912), (192, 110836), (229, 92928), (242, 87936), (256, 83127), (264, 80608), (352, 60456), (363, 58624), (384, 55418), (458, 46464), (484, 43968), (528, 40304), (687, 30976), (704, 30228), (726, 29312), (768, 27709), (916, 23232), (968, 21984), (1056, 20152), (1374, 15488), (1408, 15114), (1452, 14656), (1832, 11616), (1936, 10992), (2112, 10076), (2519, 8448), (2748, 7744), (2816, 7557), (2904, 7328), (3664, 5808), (3872, 5496), (4224, 5038)]