81165161

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{919}}^1$

素因数の和:1005

約数の個数: 32

約数和(自身を含む): 107397120

約数和(自身を除く): 26231959

約数列:

[1, 7, 11, 31, 37, 77, 217, 259, 341, 407, 919, 1147, 2387, 2849, 6433, 8029, 10109, 12617, 28489, 34003, 70763, 88319, 199423, 238021, 313379, 374033, 1054093, 2193653, 2618231, 7378651, 11595023, 81165161]

約数ペア:

[(1, 81165161), (7, 11595023), (11, 7378651), (31, 2618231), (37, 2193653), (77, 1054093), (217, 374033), (259, 313379), (341, 238021), (407, 199423), (919, 88319), (1147, 70763), (2387, 34003), (2849, 28489), (6433, 12617), (8029, 10109)]