205751

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:63

約数の個数: 24

約数和(自身を含む): 287280

約数和(自身を除く): 81529

約数列:

[1, 7, 13, 17, 19, 49, 91, 119, 133, 221, 247, 323, 637, 833, 931, 1547, 1729, 2261, 4199, 10829, 12103, 15827, 29393, 205751]

約数ペア:

[(1, 205751), (7, 29393), (13, 15827), (17, 12103), (19, 10829), (49, 4199), (91, 2261), (119, 1729), (133, 1547), (221, 931), (247, 833), (323, 637)]