647490831

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{4217}}^1$

素因数の和:4391

約数の個数: 32

約数和(自身を含む): 967507968

約数和(自身を除く): 320017137

約数列:

[1, 3, 13, 31, 39, 93, 127, 381, 403, 1209, 1651, 3937, 4217, 4953, 11811, 12651, 51181, 54821, 130727, 153543, 164463, 392181, 535559, 1606677, 1699451, 5098353, 6962267, 16602329, 20886801, 49806987, 215830277, 647490831]

約数ペア:

[(1, 647490831), (3, 215830277), (13, 49806987), (31, 20886801), (39, 16602329), (93, 6962267), (127, 5098353), (381, 1699451), (403, 1606677), (1209, 535559), (1651, 392181), (3937, 164463), (4217, 153543), (4953, 130727), (11811, 54821), (12651, 51181)]