65721019

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{38011}}^1$

素因数の和:38050

約数の個数: 16

約数和(自身を含む): 85146880

約数和(自身を除く): 19425861

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 38011, 266077, 494143, 722209, 3459001, 5055463, 9388717, 65721019]

約数ペア:

[(1, 65721019), (7, 9388717), (13, 5055463), (19, 3459001), (91, 722209), (133, 494143), (247, 266077), (1729, 38011)]