8905897

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:110

約数の個数: 48

約数和(自身を含む): 12870144

約数和(自身を除く): 3964247

約数列:

[1, 7, 11, 13, 31, 41, 49, 77, 91, 143, 217, 287, 341, 403, 451, 533, 539, 637, 1001, 1271, 1519, 2009, 2387, 2821, 3157, 3731, 4433, 5863, 7007, 8897, 13981, 16523, 16709, 19747, 22099, 26117, 31031, 41041, 62279, 97867, 115661, 181753, 217217, 287287, 685069, 809627, 1272271, 8905897]

約数ペア:

[(1, 8905897), (7, 1272271), (11, 809627), (13, 685069), (31, 287287), (41, 217217), (49, 181753), (77, 115661), (91, 97867), (143, 62279), (217, 41041), (287, 31031), (341, 26117), (403, 22099), (451, 19747), (533, 16709), (539, 16523), (637, 13981), (1001, 8897), (1271, 7007), (1519, 5863), (2009, 4433), (2387, 3731), (2821, 3157)]