520777971

素因数分解:

$3^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{197}}^2$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 898721280

約数和(自身を除く): 377943309

約数列:

[1, 3, 7, 9, 21, 27, 63, 71, 189, 197, 213, 497, 591, 639, 1379, 1491, 1773, 1917, 4137, 4473, 5319, 12411, 13419, 13987, 37233, 38809, 41961, 97909, 116427, 125883, 271663, 293727, 349281, 377649, 814989, 881181, 1047843, 2444967, 2643543, 2755439, 7334901, 8266317, 19288073, 24798951, 57864219, 74396853, 173592657, 520777971]

約数ペア:

[(1, 520777971), (3, 173592657), (7, 74396853), (9, 57864219), (21, 24798951), (27, 19288073), (63, 8266317), (71, 7334901), (189, 2755439), (197, 2643543), (213, 2444967), (497, 1047843), (591, 881181), (639, 814989), (1379, 377649), (1491, 349281), (1773, 293727), (1917, 271663), (4137, 125883), (4473, 116427), (5319, 97909), (12411, 41961), (13419, 38809), (13987, 37233)]