71881209

素因数分解:

$3^3\times {\mathrm{107}}^1\times {\mathrm{139}}^1\times {\mathrm{179}}^1$

素因数の和:434

約数の個数: 32

約数和(自身を含む): 108864000

約数和(自身を除く): 36982791

約数列:

[1, 3, 9, 27, 107, 139, 179, 321, 417, 537, 963, 1251, 1611, 2889, 3753, 4833, 14873, 19153, 24881, 44619, 57459, 74643, 133857, 172377, 223929, 401571, 517131, 671787, 2662267, 7986801, 23960403, 71881209]

約数ペア:

[(1, 71881209), (3, 23960403), (9, 7986801), (27, 2662267), (107, 671787), (139, 517131), (179, 401571), (321, 223929), (417, 172377), (537, 133857), (963, 74643), (1251, 57459), (1611, 44619), (2889, 24881), (3753, 19153), (4833, 14873)]