21762771

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:683

約数の個数: 32

約数和(自身を含む): 33269760

約数和(自身を除く): 11506989

約数列:

[1, 3, 17, 19, 37, 51, 57, 111, 323, 607, 629, 703, 969, 1821, 1887, 2109, 10319, 11533, 11951, 22459, 30957, 34599, 35853, 67377, 196061, 381803, 426721, 588183, 1145409, 1280163, 7254257, 21762771]

約数ペア:

[(1, 21762771), (3, 7254257), (17, 1280163), (19, 1145409), (37, 588183), (51, 426721), (57, 381803), (111, 196061), (323, 67377), (607, 35853), (629, 34599), (703, 30957), (969, 22459), (1821, 11951), (1887, 11533), (2109, 10319)]