221207721

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{457987}}^1$

素因数の和:458020

約数の個数: 16

約数和(自身を含む): 351734784

約数和(自身を除く): 130527063

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 457987, 1373961, 3205909, 9617727, 10533701, 31601103, 73735907, 221207721]

約数ペア:

[(1, 221207721), (3, 73735907), (7, 31601103), (21, 10533701), (23, 9617727), (69, 3205909), (161, 1373961), (483, 457987)]