19311999

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1669}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 32064000

約数和(自身を除く): 12752001

約数列:

[1, 3, 7, 19, 21, 29, 57, 87, 133, 203, 399, 551, 609, 1653, 1669, 3857, 5007, 11571, 11683, 31711, 35049, 48401, 95133, 145203, 221977, 338807, 665931, 919619, 1016421, 2758857, 6437333, 19311999]

約数ペア:

[(1, 19311999), (3, 6437333), (7, 2758857), (19, 1016421), (21, 919619), (29, 665931), (57, 338807), (87, 221977), (133, 145203), (203, 95133), (399, 48401), (551, 35049), (609, 31711), (1653, 11683), (1669, 11571), (3857, 5007)]