21838221

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{17209}}^1$

素因数の和:17265

約数の個数: 16

約数和(自身を含む): 33043200

約数和(自身を除く): 11204979

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 17209, 51627, 154881, 464643, 808823, 2426469, 7279407, 21838221]

約数ペア:

[(1, 21838221), (3, 7279407), (9, 2426469), (27, 808823), (47, 464643), (141, 154881), (423, 51627), (1269, 17209)]