31208697

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 51979200

約数和(自身を除く): 20770503

約数列:

[1, 3, 9, 13, 19, 39, 57, 101, 117, 139, 171, 247, 303, 417, 741, 909, 1251, 1313, 1807, 1919, 2223, 2641, 3939, 5421, 5757, 7923, 11817, 14039, 16263, 17271, 23769, 24947, 34333, 42117, 74841, 102999, 126351, 182507, 224523, 266741, 308997, 547521, 800223, 1642563, 2400669, 3467633, 10402899, 31208697]

約数ペア:

[(1, 31208697), (3, 10402899), (9, 3467633), (13, 2400669), (19, 1642563), (39, 800223), (57, 547521), (101, 308997), (117, 266741), (139, 224523), (171, 182507), (247, 126351), (303, 102999), (417, 74841), (741, 42117), (909, 34333), (1251, 24947), (1313, 23769), (1807, 17271), (1919, 16263), (2223, 14039), (2641, 11817), (3939, 7923), (5421, 5757)]