20578712

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3037}}^1$

素因数の和:3072

約数の個数: 48

約数和(自身を含む): 48486480

約数和(自身を除く): 27907768

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 121, 154, 242, 308, 484, 616, 847, 968, 1694, 3037, 3388, 6074, 6776, 12148, 21259, 24296, 33407, 42518, 66814, 85036, 133628, 170072, 233849, 267256, 367477, 467698, 734954, 935396, 1469908, 1870792, 2572339, 2939816, 5144678, 10289356, 20578712]

約数ペア:

[(1, 20578712), (2, 10289356), (4, 5144678), (7, 2939816), (8, 2572339), (11, 1870792), (14, 1469908), (22, 935396), (28, 734954), (44, 467698), (56, 367477), (77, 267256), (88, 233849), (121, 170072), (154, 133628), (242, 85036), (308, 66814), (484, 42518), (616, 33407), (847, 24296), (968, 21259), (1694, 12148), (3037, 6776), (3388, 6074)]