18731207

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 22219920

約数和(自身を除く): 3488713

約数列:

[1, 11, 19, 53, 89, 209, 361, 583, 979, 1007, 1691, 3971, 4717, 11077, 18601, 19133, 32129, 51887, 89623, 210463, 353419, 985853, 1702837, 18731207]

約数ペア:

[(1, 18731207), (11, 1702837), (19, 985853), (53, 353419), (89, 210463), (209, 89623), (361, 51887), (583, 32129), (979, 19133), (1007, 18601), (1691, 11077), (3971, 4717)]