21143601

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{4441}}^1$

素因数の和:4493

約数の個数: 18

約数和(自身を含む): 31933538

約数和(自身を除く): 10789937

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4441, 4761, 13323, 39969, 102143, 306429, 919287, 2349289, 7047867, 21143601]

約数ペア:

[(1, 21143601), (3, 7047867), (9, 2349289), (23, 919287), (69, 306429), (207, 102143), (529, 39969), (1587, 13323), (4441, 4761)]