21581613

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{1511}}^1$

素因数の和:1566

約数の個数: 24

約数和(自身を含む): 33445440

約数和(自身を除く): 11863827

約数列:

[1, 3, 9, 23, 27, 69, 207, 529, 621, 1511, 1587, 4533, 4761, 13599, 14283, 34753, 40797, 104259, 312777, 799319, 938331, 2397957, 7193871, 21581613]

約数ペア:

[(1, 21581613), (3, 7193871), (9, 2397957), (23, 938331), (27, 799319), (69, 312777), (207, 104259), (529, 40797), (621, 34753), (1511, 14283), (1587, 13599), (4533, 4761)]