81121411

素因数分解:

$7^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 97675200

約数和(自身を除く): 16553789

約数列:

[1, 7, 41, 49, 149, 271, 287, 1043, 1897, 2009, 6109, 7301, 11111, 13279, 40379, 42763, 77777, 282653, 299341, 544439, 1655539, 1978571, 11588773, 81121411]

約数ペア:

[(1, 81121411), (7, 11588773), (41, 1978571), (49, 1655539), (149, 544439), (271, 299341), (287, 282653), (1043, 77777), (1897, 42763), (2009, 40379), (6109, 13279), (7301, 11111)]