20816679

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{1009}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 31277680

約数和(自身を除く): 10461001

約数列:

[1, 3, 13, 23, 39, 69, 299, 529, 897, 1009, 1587, 3027, 6877, 13117, 20631, 23207, 39351, 69621, 301691, 533761, 905073, 1601283, 6938893, 20816679]

約数ペア:

[(1, 20816679), (3, 6938893), (13, 1601283), (23, 905073), (39, 533761), (69, 301691), (299, 69621), (529, 39351), (897, 23207), (1009, 20631), (1587, 13117), (3027, 6877)]