21189201

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{10883}}^1$

素因数の和:10956

約数の個数: 16

約数和(自身を含む): 31345920

約数和(自身を除く): 10156719

約数列:

[1, 3, 11, 33, 59, 177, 649, 1947, 10883, 32649, 119713, 359139, 642097, 1926291, 7063067, 21189201]

約数ペア:

[(1, 21189201), (3, 7063067), (11, 1926291), (33, 642097), (59, 359139), (177, 119713), (649, 32649), (1947, 10883)]