21748944

素因数分解:

$2^4\times 3^1\times 7^3\times {\mathrm{1321}}^1$

素因数の和:1353

約数の個数: 80

約数和(自身を含む): 65571200

約数和(自身を除く): 43822256

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 49, 56, 84, 98, 112, 147, 168, 196, 294, 336, 343, 392, 588, 686, 784, 1029, 1176, 1321, 1372, 2058, 2352, 2642, 2744, 3963, 4116, 5284, 5488, 7926, 8232, 9247, 10568, 15852, 16464, 18494, 21136, 27741, 31704, 36988, 55482, 63408, 64729, 73976, 110964, 129458, 147952, 194187, 221928, 258916, 388374, 443856, 453103, 517832, 776748, 906206, 1035664, 1359309, 1553496, 1812412, 2718618, 3106992, 3624824, 5437236, 7249648, 10874472, 21748944]

約数ペア:

[(1, 21748944), (2, 10874472), (3, 7249648), (4, 5437236), (6, 3624824), (7, 3106992), (8, 2718618), (12, 1812412), (14, 1553496), (16, 1359309), (21, 1035664), (24, 906206), (28, 776748), (42, 517832), (48, 453103), (49, 443856), (56, 388374), (84, 258916), (98, 221928), (112, 194187), (147, 147952), (168, 129458), (196, 110964), (294, 73976), (336, 64729), (343, 63408), (392, 55482), (588, 36988), (686, 31704), (784, 27741), (1029, 21136), (1176, 18494), (1321, 16464), (1372, 15852), (2058, 10568), (2352, 9247), (2642, 8232), (2744, 7926), (3963, 5488), (4116, 5284)]