209340537

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1709}}^1$

素因数の和:2045

約数の個数: 32

約数和(自身を含む): 337075200

約数和(自身を除く): 127734663

約数列:

[1, 3, 7, 19, 21, 57, 133, 307, 399, 921, 1709, 2149, 5127, 5833, 6447, 11963, 17499, 32471, 35889, 40831, 97413, 122493, 227297, 524663, 681891, 1573989, 3672641, 9968597, 11017923, 29905791, 69780179, 209340537]

約数ペア:

[(1, 209340537), (3, 69780179), (7, 29905791), (19, 11017923), (21, 9968597), (57, 3672641), (133, 1573989), (307, 681891), (399, 524663), (921, 227297), (1709, 122493), (2149, 97413), (5127, 40831), (5833, 35889), (6447, 32471), (11963, 17499)]