2221.0000000

素因数分解:

$3^3\times {\mathrm{139}}^1\times {\mathrm{1697}}^1$

素因数の和:1845

約数の個数: 16

約数和(自身を含む): 9508800

約数和(自身を除く): 3139959

約数列:

[1, 3, 9, 27, 139, 417, 1251, 1697, 3753, 5091, 15273, 45819, 235883, 707649, 2122947, 6368841]

約数ペア:

[(1, 6368841), (3, 2122947), (9, 707649), (27, 235883), (139, 45819), (417, 15273), (1251, 5091), (1697, 3753)]