2005493889

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1565569}}^1$

素因数の和:1565640

約数の個数: 16

約数和(自身を含む): 3106090880

約数和(自身を除く): 1100596991

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 1565569, 4696707, 10958983, 32876949, 95499709, 286499127, 668497963, 2005493889]

約数ペア:

[(1, 2005493889), (3, 668497963), (7, 286499127), (21, 95499709), (61, 32876949), (183, 10958983), (427, 4696707), (1281, 1565569)]