81837217

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{547}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 107320320

約数和(自身を除く): 25483103

約数列:

[1, 7, 11, 29, 67, 77, 203, 319, 469, 547, 737, 1943, 2233, 3829, 5159, 6017, 13601, 15863, 21373, 36649, 42119, 111041, 149611, 174493, 256543, 403139, 1062821, 1221451, 2821973, 7439747, 11691031, 81837217]

約数ペア:

[(1, 81837217), (7, 11691031), (11, 7439747), (29, 2821973), (67, 1221451), (77, 1062821), (203, 403139), (319, 256543), (469, 174493), (547, 149611), (737, 111041), (1943, 42119), (2233, 36649), (3829, 21373), (5159, 15863), (6017, 13601)]