21054159

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1867}}^1$

素因数の和:2059

約数の個数: 24

約数和(自身を含む): 34968960

約数和(自身を除く): 13914801

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 1867, 3759, 5601, 11277, 13069, 16803, 39207, 117621, 334193, 1002579, 2339351, 3007737, 7018053, 21054159]

約数ペア:

[(1, 21054159), (3, 7018053), (7, 3007737), (9, 2339351), (21, 1002579), (63, 334193), (179, 117621), (537, 39207), (1253, 16803), (1611, 13069), (1867, 11277), (3759, 5601)]