21000314874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{509}}^1\times {\mathrm{89303}}^1$

素因数の和:89835

約数の個数: 64

約数和(自身を含む): 52467886080

約数和(自身を除く): 31467571206

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 462, 509, 1018, 1527, 3054, 3563, 5599, 7126, 10689, 11198, 16797, 21378, 33594, 39193, 78386, 89303, 117579, 178606, 235158, 267909, 535818, 625121, 982333, 1250242, 1875363, 1964666, 2946999, 3750726, 5893998, 6876331, 13752662, 20628993, 41257986, 45455227, 90910454, 136365681, 272731362, 318186589, 500007497, 636373178, 954559767, 1000014994, 1500022491, 1909119534, 3000044982, 3500052479, 7000104958, 10500157437, 21000314874]

約数ペア:

[(1, 21000314874), (2, 10500157437), (3, 7000104958), (6, 3500052479), (7, 3000044982), (11, 1909119534), (14, 1500022491), (21, 1000014994), (22, 954559767), (33, 636373178), (42, 500007497), (66, 318186589), (77, 272731362), (154, 136365681), (231, 90910454), (462, 45455227), (509, 41257986), (1018, 20628993), (1527, 13752662), (3054, 6876331), (3563, 5893998), (5599, 3750726), (7126, 2946999), (10689, 1964666), (11198, 1875363), (16797, 1250242), (21378, 982333), (33594, 625121), (39193, 535818), (78386, 267909), (89303, 235158), (117579, 178606)]