31257603

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:193

約数の個数: 64

約数和(自身を含む): 54208000

約数和(自身を除く): 22950397

約数列:

[1, 3, 9, 13, 19, 27, 39, 43, 57, 109, 117, 129, 171, 247, 327, 351, 387, 513, 559, 741, 817, 981, 1161, 1417, 1677, 2071, 2223, 2451, 2943, 4251, 4687, 5031, 6213, 6669, 7353, 10621, 12753, 14061, 15093, 18639, 22059, 26923, 31863, 38259, 42183, 55917, 60931, 80769, 89053, 95589, 126549, 182793, 242307, 267159, 286767, 548379, 726921, 801477, 1157689, 1645137, 2404431, 3473067, 10419201, 31257603]

約数ペア:

[(1, 31257603), (3, 10419201), (9, 3473067), (13, 2404431), (19, 1645137), (27, 1157689), (39, 801477), (43, 726921), (57, 548379), (109, 286767), (117, 267159), (129, 242307), (171, 182793), (247, 126549), (327, 95589), (351, 89053), (387, 80769), (513, 60931), (559, 55917), (741, 42183), (817, 38259), (981, 31863), (1161, 26923), (1417, 22059), (1677, 18639), (2071, 15093), (2223, 14061), (2451, 12753), (2943, 10621), (4251, 7353), (4687, 6669), (5031, 6213)]