217585251

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{8731}}^1$

素因数の和:8824

約数の個数: 32

約数和(自身を含む): 352074240

約数和(自身を除く): 134488989

約数列:

[1, 3, 9, 13, 27, 39, 71, 117, 213, 351, 639, 923, 1917, 2769, 8307, 8731, 24921, 26193, 78579, 113503, 235737, 340509, 619901, 1021527, 1859703, 3064581, 5579109, 8058713, 16737327, 24176139, 72528417, 217585251]

約数ペア:

[(1, 217585251), (3, 72528417), (9, 24176139), (13, 16737327), (27, 8058713), (39, 5579109), (71, 3064581), (117, 1859703), (213, 1021527), (351, 619901), (639, 340509), (923, 235737), (1917, 113503), (2769, 78579), (8307, 26193), (8731, 24921)]