20857564

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{57301}}^1$

素因数の和:57325

約数の個数: 24

約数和(自身を含む): 44924768

約数和(自身を除く): 24067204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 57301, 114602, 229204, 401107, 744913, 802214, 1489826, 1604428, 2979652, 5214391, 10428782, 20857564]

約数ペア:

[(1, 20857564), (2, 10428782), (4, 5214391), (7, 2979652), (13, 1604428), (14, 1489826), (26, 802214), (28, 744913), (52, 401107), (91, 229204), (182, 114602), (364, 57301)]