51431611

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 67765248

約数和(自身を除く): 16333637

約数列:

[1, 7, 11, 23, 77, 113, 161, 253, 257, 791, 1243, 1771, 1799, 2599, 2827, 5911, 8701, 18193, 19789, 28589, 29041, 41377, 65021, 200123, 203287, 319451, 455147, 667943, 2236157, 4675601, 7347373, 51431611]

約数ペア:

[(1, 51431611), (7, 7347373), (11, 4675601), (23, 2236157), (77, 667943), (113, 455147), (161, 319451), (253, 203287), (257, 200123), (791, 65021), (1243, 41377), (1771, 29041), (1799, 28589), (2599, 19789), (2827, 18193), (5911, 8701)]