207977707

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 32

約数和(自身を含む): 259660800

約数和(自身を除く): 51683093

約数列:

[1, 7, 23, 41, 49, 161, 287, 343, 643, 943, 1127, 2009, 4501, 6601, 7889, 14063, 14789, 26363, 31507, 46207, 103523, 184541, 220549, 323449, 606349, 724661, 1291787, 4244443, 5072627, 9042509, 29711101, 207977707]

約数ペア:

[(1, 207977707), (7, 29711101), (23, 9042509), (41, 5072627), (49, 4244443), (161, 1291787), (287, 724661), (343, 606349), (643, 323449), (943, 220549), (1127, 184541), (2009, 103523), (4501, 46207), (6601, 31507), (7889, 26363), (14063, 14789)]