521220007

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4583}}^1$

素因数の和:4819

約数の個数: 24

約数和(自身を含む): 664716672

約数和(自身を除く): 143496665

約数列:

[1, 7, 11, 49, 77, 211, 539, 1477, 2321, 4583, 10339, 16247, 32081, 50413, 113729, 224567, 352891, 967013, 2470237, 6769091, 10637143, 47383637, 74460001, 521220007]

約数ペア:

[(1, 521220007), (7, 74460001), (11, 47383637), (49, 10637143), (77, 6769091), (211, 2470237), (539, 967013), (1477, 352891), (2321, 224567), (4583, 113729), (10339, 50413), (16247, 32081)]