51308991

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{31153}}^1$

素因数の和:31223

約数の個数: 16

約数和(自身を含む): 77261920

約数和(自身を除く): 25952929

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 31153, 93459, 280377, 841131, 1900333, 5700999, 17102997, 51308991]

約数ペア:

[(1, 51308991), (3, 17102997), (9, 5700999), (27, 1900333), (61, 841131), (183, 280377), (549, 93459), (1647, 31153)]