13286871

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 22422400

約数和(自身を除く): 9135529

約数列:

[1, 3, 9, 13, 19, 39, 43, 57, 117, 129, 139, 171, 247, 387, 417, 559, 741, 817, 1251, 1677, 1807, 2223, 2451, 2641, 5031, 5421, 5977, 7353, 7923, 10621, 16263, 17931, 23769, 31863, 34333, 53793, 77701, 95589, 102999, 113563, 233103, 308997, 340689, 699309, 1022067, 1476319, 4428957, 13286871]

約数ペア:

[(1, 13286871), (3, 4428957), (9, 1476319), (13, 1022067), (19, 699309), (39, 340689), (43, 308997), (57, 233103), (117, 113563), (129, 102999), (139, 95589), (171, 77701), (247, 53793), (387, 34333), (417, 31863), (559, 23769), (741, 17931), (817, 16263), (1251, 10621), (1677, 7923), (1807, 7353), (2223, 5977), (2451, 5421), (2641, 5031)]