209715863

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{383}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 265420800

約数和(自身を除く): 55704937

約数列:

[1, 7, 19, 23, 133, 161, 179, 383, 437, 1253, 2681, 3059, 3401, 4117, 7277, 8809, 23807, 28819, 50939, 61663, 68557, 78223, 167371, 479899, 547561, 1171597, 1302583, 1576811, 9118081, 11037677, 29959409, 209715863]

約数ペア:

[(1, 209715863), (7, 29959409), (19, 11037677), (23, 9118081), (133, 1576811), (161, 1302583), (179, 1171597), (383, 547561), (437, 479899), (1253, 167371), (2681, 78223), (3059, 68557), (3401, 61663), (4117, 50939), (7277, 28819), (8809, 23807)]