209512009

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{12373}}^1$

素因数の和:12480

約数の個数: 16

約数和(自身を含む): 249459840

約数和(自身を除く): 39947831

約数列:

[1, 7, 41, 59, 287, 413, 2419, 12373, 16933, 86611, 507293, 730007, 3551051, 5110049, 29930287, 209512009]

約数ペア:

[(1, 209512009), (7, 29930287), (41, 5110049), (59, 3551051), (287, 730007), (413, 507293), (2419, 86611), (12373, 16933)]