81839681

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{4201}}^1$

素因数の和:4253

約数の個数: 24

約数和(自身を含む): 107302272

約数和(自身を除く): 25462591

約数列:

[1, 7, 11, 23, 77, 121, 161, 253, 847, 1771, 2783, 4201, 19481, 29407, 46211, 96623, 323477, 508321, 676361, 1062853, 3558247, 7439971, 11691383, 81839681]

約数ペア:

[(1, 81839681), (7, 11691383), (11, 7439971), (23, 3558247), (77, 1062853), (121, 676361), (161, 508321), (253, 323477), (847, 96623), (1771, 46211), (2783, 29407), (4201, 19481)]