66986381

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 92805120

約数和(自身を除く): 25818739

約数列:

[1, 7, 11, 19, 31, 49, 77, 133, 209, 211, 217, 341, 539, 589, 931, 1463, 1477, 1519, 2321, 2387, 4009, 4123, 6479, 6541, 10241, 10339, 16247, 16709, 28063, 28861, 44099, 45353, 45787, 71951, 113729, 124279, 196441, 308693, 317471, 320509, 503657, 869953, 1367069, 2160851, 3525599, 6089671, 9569483, 66986381]

約数ペア:

[(1, 66986381), (7, 9569483), (11, 6089671), (19, 3525599), (31, 2160851), (49, 1367069), (77, 869953), (133, 503657), (209, 320509), (211, 317471), (217, 308693), (341, 196441), (539, 124279), (589, 113729), (931, 71951), (1463, 45787), (1477, 45353), (1519, 44099), (2321, 28861), (2387, 28063), (4009, 16709), (4123, 16247), (6479, 10339), (6541, 10241)]