19684287

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{10079}}^1$

素因数の和:10123

約数の個数: 24

約数和(自身を含む): 33546240

約数和(自身を除く): 13861953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 10079, 30237, 70553, 90711, 211659, 312449, 634977, 937347, 2187143, 2812041, 6561429, 19684287]

約数ペア:

[(1, 19684287), (3, 6561429), (7, 2812041), (9, 2187143), (21, 937347), (31, 634977), (63, 312449), (93, 211659), (217, 90711), (279, 70553), (651, 30237), (1953, 10079)]