21381168

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 80

約数和(自身を含む): 58496256

約数和(自身を除く): 37115088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 92, 107, 138, 181, 184, 214, 276, 321, 362, 368, 428, 543, 552, 642, 724, 856, 1086, 1104, 1284, 1448, 1712, 2172, 2461, 2568, 2896, 4163, 4344, 4922, 5136, 7383, 8326, 8688, 9844, 12489, 14766, 16652, 19367, 19688, 24978, 29532, 33304, 38734, 39376, 49956, 58101, 59064, 66608, 77468, 99912, 116202, 118128, 154936, 199824, 232404, 309872, 445441, 464808, 890882, 929616, 1336323, 1781764, 2672646, 3563528, 5345292, 7127056, 10690584, 21381168]

約数ペア:

[(1, 21381168), (2, 10690584), (3, 7127056), (4, 5345292), (6, 3563528), (8, 2672646), (12, 1781764), (16, 1336323), (23, 929616), (24, 890882), (46, 464808), (48, 445441), (69, 309872), (92, 232404), (107, 199824), (138, 154936), (181, 118128), (184, 116202), (214, 99912), (276, 77468), (321, 66608), (362, 59064), (368, 58101), (428, 49956), (543, 39376), (552, 38734), (642, 33304), (724, 29532), (856, 24978), (1086, 19688), (1104, 19367), (1284, 16652), (1448, 14766), (1712, 12489), (2172, 9844), (2461, 8688), (2568, 8326), (2896, 7383), (4163, 5136), (4344, 4922)]