18873891

素因数分解:

$3^4\times {\mathrm{389}}^1\times {\mathrm{599}}^1$

素因数の和:1000

約数の個数: 20

約数和(自身を含む): 28314000

約数和(自身を除く): 9440109

約数列:

[1, 3, 9, 27, 81, 389, 599, 1167, 1797, 3501, 5391, 10503, 16173, 31509, 48519, 233011, 699033, 2097099, 6291297, 18873891]

約数ペア:

[(1, 18873891), (3, 6291297), (9, 2097099), (27, 699033), (81, 233011), (389, 48519), (599, 31509), (1167, 16173), (1797, 10503), (3501, 5391)]