2177721

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2659}}^1$

素因数の和:2685

約数の個数: 24

約数和(自身を含む): 3872960

約数和(自身を除く): 1695239

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 2659, 7977, 18613, 23931, 34567, 55839, 103701, 167517, 241969, 311103, 725907, 2177721]

約数ペア:

[(1, 2177721), (3, 725907), (7, 311103), (9, 241969), (13, 167517), (21, 103701), (39, 55839), (63, 34567), (91, 23931), (117, 18613), (273, 7977), (819, 2659)]