31201287

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:168

約数の個数: 48

約数和(自身を含む): 49190400

約数和(自身を除く): 17989113

約数列:

[1, 3, 13, 19, 39, 41, 57, 79, 123, 169, 237, 247, 507, 533, 741, 779, 1027, 1501, 1599, 2337, 3081, 3211, 3239, 4503, 6929, 9633, 9717, 10127, 13351, 19513, 20787, 30381, 40053, 42107, 58539, 61541, 126321, 131651, 184623, 253669, 394953, 547391, 761007, 800033, 1642173, 2400099, 10400429, 31201287]

約数ペア:

[(1, 31201287), (3, 10400429), (13, 2400099), (19, 1642173), (39, 800033), (41, 761007), (57, 547391), (79, 394953), (123, 253669), (169, 184623), (237, 131651), (247, 126321), (507, 61541), (533, 58539), (741, 42107), (779, 40053), (1027, 30381), (1501, 20787), (1599, 19513), (2337, 13351), (3081, 10127), (3211, 9717), (3239, 9633), (4503, 6929)]