21354651

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{41627}}^1$

素因数の和:41655

約数の個数: 16

約数和(自身を含む): 33302400

約数和(自身を除く): 11947749

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 41627, 124881, 374643, 790913, 1123929, 2372739, 7118217, 21354651]

約数ペア:

[(1, 21354651), (3, 7118217), (9, 2372739), (19, 1123929), (27, 790913), (57, 374643), (171, 124881), (513, 41627)]