71628347

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 91200000

約数和(自身を除く): 19571653

約数列:

[1, 7, 19, 29, 49, 133, 203, 343, 379, 551, 931, 1421, 2653, 3857, 6517, 7201, 9947, 10991, 18571, 26999, 50407, 76937, 129997, 188993, 208829, 352849, 538559, 1461803, 2469943, 3769913, 10232621, 71628347]

約数ペア:

[(1, 71628347), (7, 10232621), (19, 3769913), (29, 2469943), (49, 1461803), (133, 538559), (203, 352849), (343, 208829), (379, 188993), (551, 129997), (931, 76937), (1421, 50407), (2653, 26999), (3857, 18571), (6517, 10991), (7201, 9947)]