66778019

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{3889}}^1$

素因数の和:4130

約数の個数: 16

約数和(自身を含む): 83650560

約数和(自身を除く): 16872541

約数列:

[1, 7, 11, 77, 223, 1561, 2453, 3889, 17171, 27223, 42779, 299453, 867247, 6070729, 9539717, 66778019]

約数ペア:

[(1, 66778019), (7, 9539717), (11, 6070729), (77, 867247), (223, 299453), (1561, 42779), (2453, 27223), (3889, 17171)]