18103827

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 31043840

約数和(自身を除く): 12940013

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 157, 289, 323, 357, 399, 471, 867, 969, 1099, 2023, 2261, 2669, 2983, 3297, 5491, 6069, 6783, 8007, 8949, 16473, 18683, 20881, 38437, 45373, 50711, 56049, 62643, 115311, 136119, 152133, 317611, 354977, 862087, 952833, 1064931, 2586261, 6034609, 18103827]

約数ペア:

[(1, 18103827), (3, 6034609), (7, 2586261), (17, 1064931), (19, 952833), (21, 862087), (51, 354977), (57, 317611), (119, 152133), (133, 136119), (157, 115311), (289, 62643), (323, 56049), (357, 50711), (399, 45373), (471, 38437), (867, 20881), (969, 18683), (1099, 16473), (2023, 8949), (2261, 8007), (2669, 6783), (2983, 6069), (3297, 5491)]