21836547

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{3797}}^1$

素因数の和:3880

約数の個数: 20

約数和(自身を含む): 33088176

約数和(自身を除く): 11251629

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 3797, 5751, 11391, 34173, 102519, 269587, 307557, 808761, 2426283, 7278849, 21836547]

約数ペア:

[(1, 21836547), (3, 7278849), (9, 2426283), (27, 808761), (71, 307557), (81, 269587), (213, 102519), (639, 34173), (1917, 11391), (3797, 5751)]