257712213

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{233}}^1\times {\mathrm{277}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 380944512

約数和(自身を除く): 123232299

約数列:

[1, 3, 11, 33, 121, 233, 277, 363, 699, 831, 1331, 2563, 3047, 3993, 7689, 9141, 28193, 33517, 64541, 84579, 100551, 193623, 310123, 368687, 709951, 930369, 1106061, 2129853, 7809461, 23428383, 85904071, 257712213]

約数ペア:

[(1, 257712213), (3, 85904071), (11, 23428383), (33, 7809461), (121, 2129853), (233, 1106061), (277, 930369), (363, 709951), (699, 368687), (831, 310123), (1331, 193623), (2563, 100551), (3047, 84579), (3993, 64541), (7689, 33517), (9141, 28193)]