20718104

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1259}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 24528496

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 121, 136, 187, 242, 374, 484, 748, 968, 1259, 1496, 2057, 2518, 4114, 5036, 8228, 10072, 13849, 16456, 21403, 27698, 42806, 55396, 85612, 110792, 152339, 171224, 235433, 304678, 470866, 609356, 941732, 1218712, 1883464, 2589763, 5179526, 10359052, 20718104]

約数ペア:

[(1, 20718104), (2, 10359052), (4, 5179526), (8, 2589763), (11, 1883464), (17, 1218712), (22, 941732), (34, 609356), (44, 470866), (68, 304678), (88, 235433), (121, 171224), (136, 152339), (187, 110792), (242, 85612), (374, 55396), (484, 42806), (748, 27698), (968, 21403), (1259, 16456), (1496, 13849), (2057, 10072), (2518, 8228), (4114, 5036)]