821946339

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{2731}}^1$

素因数の和:2968

約数の個数: 32

約数和(自身を含む): 1243169280

約数和(自身を除く): 421222941

約数列:

[1, 3, 9, 27, 71, 157, 213, 471, 639, 1413, 1917, 2731, 4239, 8193, 11147, 24579, 33441, 73737, 100323, 193901, 300969, 428767, 581703, 1286301, 1745109, 3858903, 5235327, 11576709, 30442457, 91327371, 273982113, 821946339]

約数ペア:

[(1, 821946339), (3, 273982113), (9, 91327371), (27, 30442457), (71, 11576709), (157, 5235327), (213, 3858903), (471, 1745109), (639, 1286301), (1413, 581703), (1917, 428767), (2731, 300969), (4239, 193901), (8193, 100323), (11147, 73737), (24579, 33441)]