20478073

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 27574272

約数和(自身を除く): 7096199

約数列:

[1, 7, 11, 23, 31, 77, 161, 217, 253, 341, 373, 713, 1771, 2387, 2611, 4103, 4991, 7843, 8579, 11563, 28721, 54901, 60053, 80941, 94369, 127193, 265949, 660583, 890351, 1861643, 2925439, 20478073]

約数ペア:

[(1, 20478073), (7, 2925439), (11, 1861643), (23, 890351), (31, 660583), (77, 265949), (161, 127193), (217, 94369), (253, 80941), (341, 60053), (373, 54901), (713, 28721), (1771, 11563), (2387, 8579), (2611, 7843), (4103, 4991)]