81216121

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{6581}}^1$

素因数の和:6672

約数の個数: 16

約数和(自身を含む): 97308288

約数和(自身を除く): 16092167

約数列:

[1, 7, 41, 43, 287, 301, 1763, 6581, 12341, 46067, 269821, 282983, 1888747, 1980881, 11602303, 81216121]

約数ペア:

[(1, 81216121), (7, 11602303), (41, 1980881), (43, 1888747), (287, 282983), (301, 269821), (1763, 46067), (6581, 12341)]