16921791

素因数分解:

$3^5\times {\mathrm{83}}^1\times {\mathrm{839}}^1$

素因数の和:937

約数の個数: 24

約数和(自身を含む): 25683840

約数和(自身を除く): 8762049

約数列:

[1, 3, 9, 27, 81, 83, 243, 249, 747, 839, 2241, 2517, 6723, 7551, 20169, 22653, 67959, 69637, 203877, 208911, 626733, 1880199, 5640597, 16921791]

約数ペア:

[(1, 16921791), (3, 5640597), (9, 1880199), (27, 626733), (81, 208911), (83, 203877), (243, 69637), (249, 67959), (747, 22653), (839, 20169), (2241, 7551), (2517, 6723)]