221870421

素因数分解:

$3^6\times {\mathrm{304349}}^1$

素因数の和:304367

約数の個数: 14

約数和(自身を含む): 332654550

約数和(自身を除く): 110784129

約数列:

[1, 3, 9, 27, 81, 243, 729, 304349, 913047, 2739141, 8217423, 24652269, 73956807, 221870421]

約数ペア:

[(1, 221870421), (3, 73956807), (9, 24652269), (27, 8217423), (81, 2739141), (243, 913047), (729, 304349)]