27721917

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 17093763

約数列:

[1, 3, 9, 17, 37, 51, 59, 83, 111, 153, 177, 249, 333, 531, 629, 747, 1003, 1411, 1887, 2183, 3009, 3071, 4233, 4897, 5661, 6549, 9027, 9213, 12699, 14691, 19647, 27639, 37111, 44073, 52207, 83249, 111333, 156621, 181189, 249747, 333999, 469863, 543567, 749241, 1630701, 3080213, 9240639, 27721917]

約数ペア:

[(1, 27721917), (3, 9240639), (9, 3080213), (17, 1630701), (37, 749241), (51, 543567), (59, 469863), (83, 333999), (111, 249747), (153, 181189), (177, 156621), (249, 111333), (333, 83249), (531, 52207), (629, 44073), (747, 37111), (1003, 27639), (1411, 19647), (1887, 14691), (2183, 12699), (3009, 9213), (3071, 9027), (4233, 6549), (4897, 5661)]