81643289

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{8231}}^1$

素因数の和:8360

約数の個数: 16

約数和(自身を含む): 101418240

約数和(自身を除く): 19774951

約数列:

[1, 7, 13, 91, 109, 763, 1417, 8231, 9919, 57617, 107003, 749021, 897179, 6280253, 11663327, 81643289]

約数ペア:

[(1, 81643289), (7, 11663327), (13, 6280253), (91, 897179), (109, 749021), (763, 107003), (1417, 57617), (8231, 9919)]