18716913

素因数分解:

$3^4\times {\mathrm{311}}^1\times {\mathrm{743}}^1$

素因数の和:1066

約数の個数: 20

約数和(自身を含む): 28087488

約数和(自身を除く): 9370575

約数列:

[1, 3, 9, 27, 81, 311, 743, 933, 2229, 2799, 6687, 8397, 20061, 25191, 60183, 231073, 693219, 2079657, 6238971, 18716913]

約数ペア:

[(1, 18716913), (3, 6238971), (9, 2079657), (27, 693219), (81, 231073), (311, 60183), (743, 25191), (933, 20061), (2229, 8397), (2799, 6687)]