399357777

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{7351}}^1$

素因数の和:7573

約数の個数: 32

約数和(自身を含む): 658739200

約数和(自身を除く): 259381423

約数列:

[1, 3, 7, 13, 21, 39, 91, 199, 273, 597, 1393, 2587, 4179, 7351, 7761, 18109, 22053, 51457, 54327, 95563, 154371, 286689, 668941, 1462849, 2006823, 4388547, 10239943, 19017037, 30719829, 57051111, 133119259, 399357777]

約数ペア:

[(1, 399357777), (3, 133119259), (7, 57051111), (13, 30719829), (21, 19017037), (39, 10239943), (91, 4388547), (199, 2006823), (273, 1462849), (597, 668941), (1393, 286689), (2587, 154371), (4179, 95563), (7351, 54327), (7761, 51457), (18109, 22053)]