27780711

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:655

約数の個数: 32

約数和(自身を含む): 44651520

約数和(自身を除く): 16870809

約数列:

[1, 3, 7, 21, 23, 69, 113, 161, 339, 483, 509, 791, 1527, 2373, 2599, 3563, 7797, 10689, 11707, 18193, 35121, 54579, 57517, 81949, 172551, 245847, 402619, 1207857, 1322891, 3968673, 9260237, 27780711]

約数ペア:

[(1, 27780711), (3, 9260237), (7, 3968673), (21, 1322891), (23, 1207857), (69, 402619), (113, 245847), (161, 172551), (339, 81949), (483, 57517), (509, 54579), (791, 35121), (1527, 18193), (2373, 11707), (2599, 10689), (3563, 7797)]